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131001021201 = 373598178179
BaseRepresentation
bin111101000000001000…
…1001111001100010001
3110112010200112101120010
41322000101033030101
54121242230134301
6140103034305133
712315220210341
oct1720021171421
9415120471503
10131001021201
1150614730186
122147bb881a9
13c4793ab77b
1464aa400d21
15361ab975d6
hex1e8044f311

131001021201 has 8 divisors (see below), whose sum is σ = 177060741280. Its totient is φ = 86137657632.

The previous prime is 131001021161. The next prime is 131001021227. The reversal of 131001021201 is 102120100131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131001021201 - 210 = 131001020177 is a prime.

It is a super-2 number, since 2×1310010212012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131001021101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299088871 + ... + 299089308.

It is an arithmetic number, because the mean of its divisors is an integer number (22132592660).

Almost surely, 2131001021201 is an apocalyptic number.

It is an amenable number.

131001021201 is a deficient number, since it is larger than the sum of its proper divisors (46059720079).

131001021201 is an equidigital number, since it uses as much as digits as its factorization.

131001021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598178255.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 131001021201 its reverse (102120100131), we get a palindrome (233121121332).

It can be divided in two parts, 13100 and 1021201, that added together give a palindrome (1034301).

The spelling of 131001021201 in words is "one hundred thirty-one billion, one million, twenty-one thousand, two hundred one".

Divisors: 1 3 73 219 598178179 1794534537 43667007067 131001021201