31140551531112 has 16 divisors (see below), whose sum is σ = 77851378827840. Its totient is φ = 10380183843696.

The previous prime is 31140551531101. The next prime is 31140551531161. The reversal of 31140551531112 is 21113515504113.

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, 648761490208 + ... + 648761490255.

It is an arithmetic number, because the mean of its divisors is an integer number (4865711176740).

Almost surely, 2^{31140551531112} is an apocalyptic number.

It is an amenable number.

31140551531112 is an abundant number, since it is smaller than the sum of its proper divisors (46710827296728).

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

31140551531112 is a wasteful number, since it uses less digits than its factorization.

31140551531112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297522980472 (or 1297522980468 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 31140551531112 in words is "thirty-one trillion, one hundred forty billion, five hundred fifty-one million, five hundred thirty-one thousand, one hundred twelve".