312033122223213 has 4 divisors (see below), whose sum is σ = 416044162964288. Its totient is φ = 208022081482140.

The previous prime is 312033122223209. The next prime is 312033122223223. The reversal of 312033122223213 is 312322221330213.

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 not a de Polignac number, because 312033122223213 - 2² = 312033122223209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312033122223223) 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, 52005520370533 + ... + 52005520370538.

It is an arithmetic number, because the mean of its divisors is an integer number (104011040741072).

Almost surely, 2^{312033122223213} is an apocalyptic number.

It is an amenable number.

312033122223213 is a deficient number, since it is larger than the sum of its proper divisors (104011040741075).

312033122223213 is a wasteful number, since it uses less digits than its factorization.

312033122223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104011040741074.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 312033122223213 its reverse (312322221330213), we get a palindrome (624355343553426).

The spelling of 312033122223213 in words is "three hundred twelve trillion, thirty-three billion, one hundred twenty-two million, two hundred twenty-three thousand, two hundred thirteen".