3121100232 has 32 divisors (see below), whose sum is σ = 7878511680. Its totient is φ = 1030265280.

The previous prime is 3121100231. The next prime is 3121100233. The reversal of 3121100232 is 2320011213.

It is an interprime number because it is at equal distance from previous prime (3121100231) and next prime (3121100233).

It is not an unprimeable number, because it can be changed into a prime (3121100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628819 + ... + 633762.

It is an arithmetic number, because the mean of its divisors is an integer number (246203490).

Almost surely, 2^3121100232 is an apocalyptic number.

It is an amenable number.

3121100232 is an abundant number, since it is smaller than the sum of its proper divisors (4757411448).

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

3121100232 is a wasteful number, since it uses less digits than its factorization.

3121100232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262693 (or 1262689 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3121100232 is about 55866.8079632263. The cubic root of 3121100232 is about 1461.4004564419.

Adding to 3121100232 its reverse (2320011213), we get a palindrome (5441111445).

The spelling of 3121100232 in words is "three billion, one hundred twenty-one million, one hundred thousand, two hundred thirty-two".