3121254234120 has 64 divisors (see below), whose sum is σ = 10215013861440. Its totient is φ = 756667692800.

The previous prime is 3121254234071. The next prime is 3121254234157. The reversal of 3121254234120 is 214324521213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1182291951 + ... + 1182294590.

It is an arithmetic number, because the mean of its divisors is an integer number (159609591585).

Almost surely, 2^{3121254234120} is an apocalyptic number.

3121254234120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3121254234120 is an abundant number, since it is smaller than the sum of its proper divisors (7093759627320).

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

3121254234120 is a wasteful number, since it uses less digits than its factorization.

3121254234120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364586566 (or 2364586562 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 3121254234120 its reverse (214324521213), we get a palindrome (3335578755333).

The spelling of 3121254234120 in words is "three trillion, one hundred twenty-one billion, two hundred fifty-four million, two hundred thirty-four thousand, one hundred twenty".