31204033424 has 20 divisors (see below), whose sum is σ = 61012477020. Its totient is φ = 15458878080.

The previous prime is 31204033417. The next prime is 31204033447. The reversal of 31204033424 is 42433040213.

It can be written as a sum of positive squares in 2 ways, for example, as 15016051600 + 16187981824 = 122540^2 + 127232^2 .

It is a super-2 number, since 2×31204033424² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31204033393 and 31204033402.

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, 8944367 + ... + 8947854.

It is an arithmetic number, because the mean of its divisors is an integer number (3050623851).

Almost surely, 2^31204033424 is an apocalyptic number.

It is an amenable number.

31204033424 is a deficient number, since it is larger than the sum of its proper divisors (29808443596).

31204033424 is a wasteful number, since it uses less digits than its factorization.

31204033424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17892338 (or 17892332 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31204033424 its reverse (42433040213), we get a palindrome (73637073637).

The spelling of 31204033424 in words is "thirty-one billion, two hundred four million, thirty-three thousand, four hundred twenty-four".