31252150105231 has 16 divisors (see below), whose sum is σ = 34235358778368. Its totient is φ = 28292629852800.

The previous prime is 31252150105213. The next prime is 31252150105247. The reversal of 31252150105231 is 13250105125213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31252150105231 - 2⁷ = 31252150105103 is a prime.

It is a super-2 number, since 2×31252150105231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31252150105193 and 31252150105202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31252150105261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246126946 + ... + 246253888.

It is an arithmetic number, because the mean of its divisors is an integer number (2139709923648).

Almost surely, 2^{31252150105231} is an apocalyptic number.

31252150105231 is a deficient number, since it is larger than the sum of its proper divisors (2983208673137).

31252150105231 is a wasteful number, since it uses less digits than its factorization.

31252150105231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220062.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 31252150105231 in words is "thirty-one trillion, two hundred fifty-two billion, one hundred fifty million, one hundred five thousand, two hundred thirty-one".