313012133233 has 4 divisors (see below), whose sum is σ = 313091926128. Its totient is φ = 312932340340.

The previous prime is 313012133221. The next prime is 313012133249. The reversal of 313012133233 is 332331210313.

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: 332331210313 = 31 ⋅10720361623.

It is a cyclic number.

It is not a de Polignac number, because 313012133233 - 2²¹ = 313010036081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313012133198 and 313012133207.

It is not an unprimeable number, because it can be changed into a prime (313012133263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39890563 + ... + 39898408.

It is an arithmetic number, because the mean of its divisors is an integer number (78272981532).

Almost surely, 2^313012133233 is an apocalyptic number.

It is an amenable number.

313012133233 is a deficient number, since it is larger than the sum of its proper divisors (79792895).

313012133233 is an equidigital number, since it uses as much as digits as its factorization.

313012133233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79792894.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313012133233 its reverse (332331210313), we get a palindrome (645343343546).

The spelling of 313012133233 in words is "three hundred thirteen billion, twelve million, one hundred thirty-three thousand, two hundred thirty-three".