31323203124 has 96 divisors (see below), whose sum is σ = 76318260480. Its totient is φ = 9991296000.

The previous prime is 31323203111. The next prime is 31323203189. The reversal of 31323203124 is 42130232313.

It is a super-2 number, since 2×31323203124² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31323203094 and 31323203103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5413537 + ... + 5419319.

It is an arithmetic number, because the mean of its divisors is an integer number (794981880).

Almost surely, 2^31323203124 is an apocalyptic number.

It is an amenable number.

31323203124 is an abundant number, since it is smaller than the sum of its proper divisors (44995057356).

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

31323203124 is a wasteful number, since it uses less digits than its factorization.

31323203124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31323203124 its reverse (42130232313), we get a palindrome (73453435437).

The spelling of 31323203124 in words is "thirty-one billion, three hundred twenty-three million, two hundred three thousand, one hundred twenty-four".