311212232032 has 48 divisors (see below), whose sum is σ = 665025403392. Its totient is φ = 142505395200.

The previous prime is 311212231973. The next prime is 311212232039. The reversal of 311212232032 is 230232212113.

It is a junction number, because it is equal to n+sod(n) for n = 311212231994 and 311212232012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311212232039) 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, 2892469 + ... + 2998132.

It is an arithmetic number, because the mean of its divisors is an integer number (13854695904).

Almost surely, 2^311212232032 is an apocalyptic number.

311212232032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311212232032 is an abundant number, since it is smaller than the sum of its proper divisors (353813171360).

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

311212232032 is a wasteful number, since it uses less digits than its factorization.

311212232032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890751 (or 5890743 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 311212232032 its reverse (230232212113), we get a palindrome (541444444145).

The spelling of 311212232032 in words is "three hundred eleven billion, two hundred twelve million, two hundred thirty-two thousand, thirty-two".