311043142032 has 40 divisors (see below), whose sum is σ = 918317848896. Its totient is φ = 88869469056.

The previous prime is 311043142031. The next prime is 311043142043. The reversal of 311043142032 is 230241340113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 311043141993 and 311043142011.

It is not an unprimeable number, because it can be changed into a prime (311043142031) 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, 462861483 + ... + 462862154.

Almost surely, 2^311043142032 is an apocalyptic number.

It is an amenable number.

311043142032 is an abundant number, since it is smaller than the sum of its proper divisors (607274706864).

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

311043142032 is a wasteful number, since it uses less digits than its factorization.

311043142032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925723655 (or 925723649 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 311043142032 its reverse (230241340113), we get a palindrome (541284482145).

The spelling of 311043142032 in words is "three hundred eleven billion, forty-three million, one hundred forty-two thousand, thirty-two".