31004212250 has 32 divisors (see below), whose sum is σ = 63316244160. Its totient is φ = 11274258000.

The previous prime is 31004212241. The next prime is 31004212273. The reversal of 31004212250 is 5221240013.

It is a super-2 number, since 2×31004212250² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5634380 + ... + 5639879.

It is an arithmetic number, because the mean of its divisors is an integer number (1978632630).

Almost surely, 2^31004212250 is an apocalyptic number.

31004212250 is an abundant number, since it is smaller than the sum of its proper divisors (32312031910).

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

31004212250 is a wasteful number, since it uses less digits than its factorization.

31004212250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274287 (or 11274277 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 31004212250 its reverse (5221240013), we get a palindrome (36225452263).

The spelling of 31004212250 in words is "thirty-one billion, four million, two hundred twelve thousand, two hundred fifty".