312343311210021 has 24 divisors (see below), whose sum is σ = 555276997708160. Its totient is φ = 164752515802656.

The previous prime is 312343311209999. The next prime is 312343311210023. The reversal of 312343311210021 is 120012113343213.

312343311210021 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 433 + 11 + 210 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 312343311210021 - 2¹⁰ = 312343311208997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312343311210023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190685781361 + ... + 190685782998.

Almost surely, 2^{312343311210021} is an apocalyptic number.

It is an amenable number.

312343311210021 is a deficient number, since it is larger than the sum of its proper divisors (242933686498139).

312343311210021 is a wasteful number, since it uses less digits than its factorization.

312343311210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381371564385 (or 381371564382 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 312343311210021 its reverse (120012113343213), we get a palindrome (432355424553234).

The spelling of 312343311210021 in words is "three hundred twelve trillion, three hundred forty-three billion, three hundred eleven million, two hundred ten thousand, twenty-one".