31004220100 has 36 divisors (see below), whose sum is σ = 76890467584. Its totient is φ = 10630018080.

The previous prime is 31004220089. The next prime is 31004220119. The reversal of 31004220100 is 102240013.

It is a super-2 number, since 2×31004220100² (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 11 ways as a sum of consecutive naturals, for example, 22145172 + ... + 22146571.

Almost surely, 2^31004220100 is an apocalyptic number.

It is an amenable number.

31004220100 is an abundant number, since it is smaller than the sum of its proper divisors (45886247484).

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

31004220100 is a wasteful number, since it uses less digits than its factorization.

31004220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44291764 (or 44291757 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 31004220100 its reverse (102240013), we get a palindrome (31106460113).

The spelling of 31004220100 in words is "thirty-one billion, four million, two hundred twenty thousand, one hundred".