3123231221232 has 40 divisors (see below), whose sum is σ = 8964830358480. Its totient is φ = 1041077073600.

The previous prime is 3123231221221. The next prime is 3123231221233. The reversal of 3123231221232 is 2321221323213.

3123231221232 is a `hidden beast` number, since 312 + 3 + 2 + 312 + 2 + 1 + 2 + 32 = 666.

It is a super-2 number, since 2×3123231221232² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a junction number, because it is equal to n+sod(n) for n = 3123231221196 and 3123231221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123231221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3614850519 + ... + 3614851382.

It is an arithmetic number, because the mean of its divisors is an integer number (224120758962).

Almost surely, 2^{3123231221232} is an apocalyptic number.

It is an amenable number.

3123231221232 is an abundant number, since it is smaller than the sum of its proper divisors (5841599137248).

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

3123231221232 is a wasteful number, since it uses less digits than its factorization.

3123231221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229701918 (or 7229701906 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 3123231221232 its reverse (2321221323213), we get a palindrome (5444452544445).

The spelling of 3123231221232 in words is "three trillion, one hundred twenty-three billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred thirty-two".