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20211000032131 = 139643226132003
BaseRepresentation
bin1001001100001101111010…
…11110100011101110000011
32122120011010100020201110121
410212012331132203232003
510122114112002012011
6110552445533041111
74154124264504256
oct446067536435603
978504110221417
1020211000032131
116492489689187
12232503b026197
13b37b7353c05c
144dc30921b09d
15250b03da3e71
hex1261bd7a3b83

20211000032131 has 8 divisors (see below), whose sum is σ = 20388061480640. Its totient is φ = 20034390849192.

The previous prime is 20211000032053. The next prime is 20211000032203. The reversal of 20211000032131 is 13123000011202.

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

It is a cyclic number.

It is not a de Polignac number, because 20211000032131 - 29 = 20211000031619 is a prime.

It is a super-2 number, since 2×202110000321312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211000042131) 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, 112976625 + ... + 113155378.

It is an arithmetic number, because the mean of its divisors is an integer number (2548507685080).

Almost surely, 220211000032131 is an apocalyptic number.

20211000032131 is a deficient number, since it is larger than the sum of its proper divisors (177061448509).

20211000032131 is a wasteful number, since it uses less digits than its factorization.

20211000032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226132785.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20211000032131 its reverse (13123000011202), we get a palindrome (33334000043333).

The spelling of 20211000032131 in words is "twenty trillion, two hundred eleven billion, thirty-two thousand, one hundred thirty-one".

Divisors: 1 139 643 89377 226132003 31432348417 145402877929 20211000032131