31202323404 has 48 divisors (see below), whose sum is σ = 85141233408. Its totient is φ = 8707624128.

The previous prime is 31202323343. The next prime is 31202323429. The reversal of 31202323404 is 40432320213.

It is a super-2 number, since 2×31202323404² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4315647 + ... + 4322870.

It is an arithmetic number, because the mean of its divisors is an integer number (1773775696).

Almost surely, 2^31202323404 is an apocalyptic number.

It is an amenable number.

31202323404 is an abundant number, since it is smaller than the sum of its proper divisors (53938910004).

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

31202323404 is a wasteful number, since it uses less digits than its factorization.

31202323404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8638574 (or 8638572 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31202323404 its reverse (40432320213), we get a palindrome (71634643617).

The spelling of 31202323404 in words is "thirty-one billion, two hundred two million, three hundred twenty-three thousand, four hundred four".