312121043044124 has 24 divisors (see below), whose sum is σ = 547881868527840. Its totient is φ = 155583680560704.

The previous prime is 312121043044093. The next prime is 312121043044127. The reversal of 312121043044124 is 421440340121213.

It is a super-2 number, since 2×312121043044124² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312121043044127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35305139 + ... + 43251530.

It is an arithmetic number, because the mean of its divisors is an integer number (22828411188660).

Almost surely, 2^{312121043044124} is an apocalyptic number.

It is an amenable number.

312121043044124 is a deficient number, since it is larger than the sum of its proper divisors (235760825483716).

312121043044124 is a wasteful number, since it uses less digits than its factorization.

312121043044124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78559709 (or 78559707 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 312121043044124 its reverse (421440340121213), we get a palindrome (733561383165337).

The spelling of 312121043044124 in words is "three hundred twelve trillion, one hundred twenty-one billion, forty-three million, forty-four thousand, one hundred twenty-four".