33112312313 has 4 divisors (see below), whose sum is σ = 33244234128. Its totient is φ = 32980390500.

The previous prime is 33112312307. The next prime is 33112312351. The reversal of 33112312313 is 31321321133.

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.

It is a cyclic number.

It is not a de Polignac number, because 33112312313 - 2⁴ = 33112312297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33112312393) 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, 65960531 + ... + 65961032.

It is an arithmetic number, because the mean of its divisors is an integer number (8311058532).

Almost surely, 2^33112312313 is an apocalyptic number.

It is an amenable number.

33112312313 is a deficient number, since it is larger than the sum of its proper divisors (131921815).

33112312313 is a wasteful number, since it uses less digits than its factorization.

33112312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131921814.

The product of its digits is 972, while the sum is 23.

Adding to 33112312313 its reverse (31321321133), we get a palindrome (64433633446).

The spelling of 33112312313 in words is "thirty-three billion, one hundred twelve million, three hundred twelve thousand, three hundred thirteen".