31004024200 has 48 divisors (see below), whose sum is σ = 74032599780. Its totient is φ = 12066428160.

The previous prime is 31004024189. The next prime is 31004024209. The reversal of 31004024200 is 242040013.

It can be written as a sum of positive squares in 6 ways, for example, as 25766028324 + 5237995876 = 160518^2 + 72374^2 .

It is a super-2 number, since 2×31004024200² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004024209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2087467 + ... + 2102266.

Almost surely, 2^31004024200 is an apocalyptic number.

It is an amenable number.

31004024200 is an abundant number, since it is smaller than the sum of its proper divisors (43028575580).

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

31004024200 is a wasteful number, since it uses less digits than its factorization.

31004024200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189786 (or 4189777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 31004024200 its reverse (242040013), we get a palindrome (31246064213).

The spelling of 31004024200 in words is "thirty-one billion, four million, twenty-four thousand, two hundred".