31320241304 has 32 divisors (see below), whose sum is σ = 64071861840. Its totient is φ = 14234755200.

The previous prime is 31320241279. The next prime is 31320241313. The reversal of 31320241304 is 40314202313.

It is a self number, because there is not a number n which added to its sum of digits gives 31320241304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970874 + ... + 1002614.

Almost surely, 2^31320241304 is an apocalyptic number.

It is an amenable number.

31320241304 is an abundant number, since it is smaller than the sum of its proper divisors (32751620536).

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

31320241304 is a wasteful number, since it uses less digits than its factorization.

31320241304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42971 (or 42967 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31320241304 its reverse (40314202313), we get a palindrome (71634443617).

The spelling of 31320241304 in words is "thirty-one billion, three hundred twenty million, two hundred forty-one thousand, three hundred four".