3121112232 has 72 divisors (see below), whose sum is σ = 9833107050. Its totient is φ = 891745344.

The previous prime is 3121112227. The next prime is 3121112251. The reversal of 3121112232 is 2322111213.

It can be written as a sum of positive squares in only one way, i.e., 3041081316 + 80030916 = 55146^2 + 8946^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 438807 + ... + 445862.

Almost surely, 2^3121112232 is an apocalyptic number.

It is an amenable number.

3121112232 is an abundant number, since it is smaller than the sum of its proper divisors (6711994818).

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

3121112232 is a wasteful number, since it uses less digits than its factorization.

3121112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884695 (or 884681 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3121112232 is about 55866.9153614194. The cubic root of 3121112232 is about 1461.4023293694.

Adding to 3121112232 its reverse (2322111213), we get a palindrome (5443223445).

The spelling of 3121112232 in words is "three billion, one hundred twenty-one million, one hundred twelve thousand, two hundred thirty-two".