31342066156140 has 24 divisors (see below), whose sum is σ = 87757785237360. Its totient is φ = 8357884308288.

The previous prime is 31342066156139. The next prime is 31342066156151. The reversal of 31342066156140 is 4165166024313.

It is a happy number.

It is a super-2 number, since 2×31342066156140² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31342066156092 and 31342066156101.

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, 261183884575 + ... + 261183884694.

It is an arithmetic number, because the mean of its divisors is an integer number (3656574384890).

Almost surely, 2^{31342066156140} is an apocalyptic number.

31342066156140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31342066156140 is an abundant number, since it is smaller than the sum of its proper divisors (56415719081220).

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

31342066156140 is a wasteful number, since it uses less digits than its factorization.

31342066156140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522367769281 (or 522367769279 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 31342066156140 in words is "thirty-one trillion, three hundred forty-two billion, sixty-six million, one hundred fifty-six thousand, one hundred forty".