931202020100129 has 2 divisors, whose sum is σ = 931202020100130. Its totient is φ = 931202020100128.

The previous prime is 931202020100069. The next prime is 931202020100173. The reversal of 931202020100129 is 921001020202139.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531521036467600 + 399680983632529 = 23054740^2 + 19992023^2 .

It is a cyclic number.

It is not a de Polignac number, because 931202020100129 - 2⁸ = 931202020099873 is a prime.

It is a super-2 number, since 2×931202020100129² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 931202020100095 and 931202020100104.

It is not a weakly prime, because it can be changed into another prime (931202020100189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465601010050064 + 465601010050065.

It is an arithmetic number, because the mean of its divisors is an integer number (465601010050065).

Almost surely, 2^{931202020100129} is an apocalyptic number.

It is an amenable number.

931202020100129 is a deficient number, since it is larger than the sum of its proper divisors (1).

931202020100129 is an equidigital number, since it uses as much as digits as its factorization.

931202020100129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 931202020100129 in words is "nine hundred thirty-one trillion, two hundred two billion, twenty million, one hundred thousand, one hundred twenty-nine".