312035551123 has 4 divisors (see below), whose sum is σ = 330390583560. Its totient is φ = 293680518688.

The previous prime is 312035551099. The next prime is 312035551127. The reversal of 312035551123 is 321155530213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321155530213 = 7 ⋅45879361459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312035551123 is a prime.

It is a super-2 number, since 2×312035551123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312035551127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9177516193 + ... + 9177516226.

It is an arithmetic number, because the mean of its divisors is an integer number (82597645890).

Almost surely, 2^312035551123 is an apocalyptic number.

312035551123 is a deficient number, since it is larger than the sum of its proper divisors (18355032437).

312035551123 is a wasteful number, since it uses less digits than its factorization.

312035551123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355032436.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 312035551123 in words is "three hundred twelve billion, thirty-five million, five hundred fifty-one thousand, one hundred twenty-three".