31532342356 has 12 divisors (see below), whose sum is σ = 58427575668. Its totient is φ = 14838749312.

The previous prime is 31532342329. The next prime is 31532342383. The reversal of 31532342356 is 65324323513.

It is an interprime number because it is at equal distance from previous prime (31532342329) and next prime (31532342383).

It can be written as a sum of positive squares in 2 ways, for example, as 12169619856 + 19362722500 = 110316^2 + 139150^2 .

It is a super-2 number, since 2×31532342356² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231855391 + ... + 231855526.

It is an arithmetic number, because the mean of its divisors is an integer number (4868964639).

Almost surely, 2^31532342356 is an apocalyptic number.

It is an amenable number.

31532342356 is a deficient number, since it is larger than the sum of its proper divisors (26895233312).

31532342356 is a wasteful number, since it uses less digits than its factorization.

31532342356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463710938 (or 463710936 counting only the distinct ones).

The product of its digits is 194400, while the sum is 37.

Adding to 31532342356 its reverse (65324323513), we get a palindrome (96856665869).

The spelling of 31532342356 in words is "thirty-one billion, five hundred thirty-two million, three hundred forty-two thousand, three hundred fifty-six".