31033420120 has 16 divisors (see below), whose sum is σ = 69825195360. Its totient is φ = 12413368032.

The previous prime is 31033420111. The next prime is 31033420141. The reversal of 31033420120 is 2102433013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387917712 + ... + 387917791.

It is an arithmetic number, because the mean of its divisors is an integer number (4364074710).

Almost surely, 2^31033420120 is an apocalyptic number.

It is an amenable number.

31033420120 is an abundant number, since it is smaller than the sum of its proper divisors (38791775240).

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

31033420120 is a wasteful number, since it uses less digits than its factorization.

31033420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775835514 (or 775835510 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31033420120 its reverse (2102433013), we get a palindrome (33135853133).

The spelling of 31033420120 in words is "thirty-one billion, thirty-three million, four hundred twenty thousand, one hundred twenty".