31430328860 has 24 divisors (see below), whose sum is σ = 75432789600. Its totient is φ = 10776112704.

The previous prime is 31430328859. The next prime is 31430328877. The reversal of 31430328860 is 6882303413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112251035 + ... + 112251314.

It is an arithmetic number, because the mean of its divisors is an integer number (3143032900).

Almost surely, 2^31430328860 is an apocalyptic number.

It is an amenable number.

31430328860 is an abundant number, since it is smaller than the sum of its proper divisors (44002460740).

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

31430328860 is a wasteful number, since it uses less digits than its factorization.

31430328860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224502365 (or 224502363 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 31430328860 in words is "thirty-one billion, four hundred thirty million, three hundred twenty-eight thousand, eight hundred sixty".