311055532140 has 24 divisors (see below), whose sum is σ = 870955490160. Its totient is φ = 82948141888.

The previous prime is 311055532127. The next prime is 311055532147. The reversal of 311055532140 is 41235550113.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 311055532098 and 311055532107.

It is not an unprimeable number, because it can be changed into a prime (311055532147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592129375 + ... + 2592129494.

It is an arithmetic number, because the mean of its divisors is an integer number (36289812090).

Almost surely, 2^311055532140 is an apocalyptic number.

311055532140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311055532140 is an abundant number, since it is smaller than the sum of its proper divisors (559899958020).

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

311055532140 is a wasteful number, since it uses less digits than its factorization.

311055532140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184258881 (or 5184258879 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 311055532140 in words is "three hundred eleven billion, fifty-five million, five hundred thirty-two thousand, one hundred forty".