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131203132021002 = 2367898821415729
BaseRepresentation
bin11101110101010000011100…
…000100111101100100001010
3122012112220012212011112212010
4131311100130010331210022
5114144113003244133002
61143013515312400350
736431053631146206
oct3565203404754412
9565486185145763
10131203132021002
1138894a32627028
12128700675460b6
13582952c9c9a52
1424583a0657b06
151027d6420546c
hex77541c13d90a

131203132021002 has 64 divisors (see below), whose sum is σ = 269346345206400. Its totient is φ = 42592630671360.

The previous prime is 131203132020973. The next prime is 131203132021007. The reversal of 131203132021002 is 200120231302131.

It is a self number, because there is not a number n which added to its sum of digits gives 131203132021002.

It is not an unprimeable number, because it can be changed into a prime (131203132021007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315389874 + ... + 315805602.

It is an arithmetic number, because the mean of its divisors is an integer number (4208536643850).

Almost surely, 2131203132021002 is an apocalyptic number.

131203132021002 is an abundant number, since it is smaller than the sum of its proper divisors (138143213185398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131203132021002 is a wasteful number, since it uses less digits than its factorization.

131203132021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424711.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131203132021002 its reverse (200120231302131), we get a palindrome (331323363323133).

The spelling of 131203132021002 in words is "one hundred thirty-one trillion, two hundred three billion, one hundred thirty-two million, twenty-one thousand, two".

Divisors: 1 2 3 6 67 89 134 178 201 267 402 534 5963 8821 11926 17642 17889 26463 35778 52926 415729 591007 785069 831458 1182014 1247187 1570138 1773021 2355207 2494374 3546042 4710414 27853843 36999881 52599623 55707686 73999762 83561529 105199246 110999643 157798869 167123058 221999286 315597738 2478992027 3667145509 4957984054 7334291018 7436976081 11001436527 14873952162 22002873054 245698749103 326375950301 491397498206 652751900602 737096247309 979127850903 1474192494618 1958255701806 21867188670167 43734377340334 65601566010501 131203132021002