312233121332213 has 4 divisors (see below), whose sum is σ = 316185439323840. Its totient is φ = 308280803340588.

The previous prime is 312233121332179. The next prime is 312233121332257.

312233121332213 is nontrivially palindromic in base 10.

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 312233121332213 - 2²⁴ = 312233104554997 is a prime.

It is a super-2 number, since 2×312233121332213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 312233121332213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312233121332113) 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, 1976158995695 + ... + 1976158995852.

It is an arithmetic number, because the mean of its divisors is an integer number (79046359830960).

Almost surely, 2^{312233121332213} is an apocalyptic number.

It is an amenable number.

312233121332213 is a deficient number, since it is larger than the sum of its proper divisors (3952317991627).

312233121332213 is an equidigital number, since it uses as much as digits as its factorization.

312233121332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952317991626.

The product of its digits is 23328, while the sum is 32.

The spelling of 312233121332213 in words is "three hundred twelve trillion, two hundred thirty-three billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred thirteen".