312322133000021 has 8 divisors (see below), whose sum is σ = 313691300423424. Its totient is φ = 310953570742080.

The previous prime is 312322132999997. The next prime is 312322133000023. The reversal of 312322133000021 is 120000331223213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312322133000021 - 2³⁴ = 312304953130837 is a prime.

It is a super-2 number, since 2×312322133000021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312322133000023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150256901 + ... + 152321306.

It is an arithmetic number, because the mean of its divisors is an integer number (39211412552928).

Almost surely, 2^{312322133000021} is an apocalyptic number.

It is an amenable number.

312322133000021 is a deficient number, since it is larger than the sum of its proper divisors (1369167423403).

312322133000021 is a wasteful number, since it uses less digits than its factorization.

312322133000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302582731.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312322133000021 its reverse (120000331223213), we get a palindrome (432322464223234).

The spelling of 312322133000021 in words is "three hundred twelve trillion, three hundred twenty-two billion, one hundred thirty-three million, twenty-one", and thus it is an aban number.