31420056192 has 256 divisors, whose sum is σ = 100959436800. Its totient is φ = 8457523200.

The previous prime is 31420056191. The next prime is 31420056247. The reversal of 31420056192 is 29165002413.

It is a super-2 number, since 2×31420056192² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31420056191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9753142 + ... + 9756362.

It is an arithmetic number, because the mean of its divisors is an integer number (394372800).

Almost surely, 2^31420056192 is an apocalyptic number.

31420056192 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31420056192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50479718400).

31420056192 is an abundant number, since it is smaller than the sum of its proper divisors (69539380608).

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

31420056192 is a wasteful number, since it uses less digits than its factorization.

31420056192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 31420056192 in words is "thirty-one billion, four hundred twenty million, fifty-six thousand, one hundred ninety-two".