31054717220 has 12 divisors (see below), whose sum is σ = 65214906204. Its totient is φ = 12421886880.

The previous prime is 31054717153. The next prime is 31054717259. The reversal of 31054717220 is 2271745013.

It can be written as a sum of positive squares in 2 ways, for example, as 14685561856 + 16369155364 = 121184^2 + 127942^2 .

It is a super-2 number, since 2×31054717220² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776367911 + ... + 776367950.

It is an arithmetic number, because the mean of its divisors is an integer number (5434575517).

Almost surely, 2^31054717220 is an apocalyptic number.

It is an amenable number.

31054717220 is an abundant number, since it is smaller than the sum of its proper divisors (34160188984).

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

31054717220 is a wasteful number, since it uses less digits than its factorization.

31054717220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552735870 (or 1552735868 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 31054717220 in words is "thirty-one billion, fifty-four million, seven hundred seventeen thousand, two hundred twenty".