31235340324 has 12 divisors (see below), whose sum is σ = 72882460784. Its totient is φ = 10411780104.

The previous prime is 31235340317. The next prime is 31235340361. The reversal of 31235340324 is 42304353213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31235340324² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31235340291 and 31235340300.

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, 1301472502 + ... + 1301472525.

Almost surely, 2^31235340324 is an apocalyptic number.

It is an amenable number.

31235340324 is an abundant number, since it is smaller than the sum of its proper divisors (41647120460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31235340324 is a wasteful number, since it uses less digits than its factorization.

31235340324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602945034 (or 2602945032 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 31235340324 its reverse (42304353213), we get a palindrome (73539693537).

The spelling of 31235340324 in words is "thirty-one billion, two hundred thirty-five million, three hundred forty thousand, three hundred twenty-four".