312001123013 has 4 divisors (see below), whose sum is σ = 312133835328. Its totient is φ = 311868410700.

The previous prime is 312001122959. The next prime is 312001123043. The reversal of 312001123013 is 310321100213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310321100213 = 14087 ⋅22028899.

It is a cyclic number.

It is not a de Polignac number, because 312001123013 - 2²⁰ = 312000074437 is a prime.

It is a super-2 number, since 2×312001123013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312001122982 and 312001123000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312001123043) 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, 66352631 + ... + 66357332.

It is an arithmetic number, because the mean of its divisors is an integer number (78033458832).

Almost surely, 2^312001123013 is an apocalyptic number.

It is an amenable number.

312001123013 is a deficient number, since it is larger than the sum of its proper divisors (132712315).

312001123013 is a wasteful number, since it uses less digits than its factorization.

312001123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132712314.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 312001123013 its reverse (310321100213), we get a palindrome (622322223226).

The spelling of 312001123013 in words is "three hundred twelve billion, one million, one hundred twenty-three thousand, thirteen".