3111312132 has 36 divisors (see below), whose sum is σ = 7936868940. Its totient is φ = 1027588032.

The previous prime is 3111312121. The next prime is 3111312133. The reversal of 3111312132 is 2312131113.

3111312132 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1476403776 + 1634908356 = 38424^2 + 40434^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3111312133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392523 + ... + 400370.

Almost surely, 2^3111312132 is an apocalyptic number.

It is an amenable number.

3111312132 is an abundant number, since it is smaller than the sum of its proper divisors (4825556808).

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

3111312132 is a wasteful number, since it uses less digits than its factorization.

3111312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793012 (or 793007 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 3111312132 is about 55779.1370675452. The cubic root of 3111312132 is about 1459.8711545770.

Adding to 3111312132 its reverse (2312131113), we get a palindrome (5423443245).

The spelling of 3111312132 in words is "three billion, one hundred eleven million, three hundred twelve thousand, one hundred thirty-two".