31525510110131 has 2 divisors, whose sum is σ = 31525510110132. Its totient is φ = 31525510110130.

The previous prime is 31525510110097. The next prime is 31525510110137. The reversal of 31525510110131 is 13101101552513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31525510110131 is a prime.

It is a super-2 number, since 2×31525510110131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31525510110094 and 31525510110103.

It is not a weakly prime, because it can be changed into another prime (31525510110137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15762755055065 + 15762755055066.

It is an arithmetic number, because the mean of its divisors is an integer number (15762755055066).

Almost surely, 2^{31525510110131} is an apocalyptic number.

31525510110131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31525510110131 is an equidigital number, since it uses as much as digits as its factorization.

31525510110131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 29.

Adding to 31525510110131 its reverse (13101101552513), we get a palindrome (44626611662644).

The spelling of 31525510110131 in words is "thirty-one trillion, five hundred twenty-five billion, five hundred ten million, one hundred ten thousand, one hundred thirty-one".