31120021110010 has 96 divisors (see below), whose sum is σ = 66438950647680. Its totient is φ = 10280442188160.

The previous prime is 31120021110007. The next prime is 31120021110053. The reversal of 31120021110010 is 1001112002113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14394757 + ... + 16414903.

It is an arithmetic number, because the mean of its divisors is an integer number (692072402580).

Almost surely, 2^{31120021110010} is an apocalyptic number.

31120021110010 is an abundant number, since it is smaller than the sum of its proper divisors (35318929537670).

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

31120021110010 is a wasteful number, since it uses less digits than its factorization.

31120021110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020452 (or 2020421 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 31120021110010 its reverse (1001112002113), we get a palindrome (32121133112123).

The spelling of 31120021110010 in words is "thirty-one trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand, ten".