312202311210321 has 16 divisors (see below), whose sum is σ = 475871510500224. Its totient is φ = 178350824945664.

The previous prime is 312202311210299. The next prime is 312202311210347. The reversal of 312202311210321 is 123012113202213.

It is not a de Polignac number, because 312202311210321 - 2¹¹ = 312202311208273 is a prime.

It is a super-2 number, since 2×312202311210321² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312202311210291 and 312202311210300.

It is not an unprimeable number, because it can be changed into a prime (312202311210221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103913456 + ... + 2104061841.

It is an arithmetic number, because the mean of its divisors is an integer number (29741969406264).

Almost surely, 2^{312202311210321} is an apocalyptic number.

It is an amenable number.

312202311210321 is a deficient number, since it is larger than the sum of its proper divisors (163669199289903).

312202311210321 is a wasteful number, since it uses less digits than its factorization.

312202311210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207978840.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 312202311210321 its reverse (123012113202213), we get a palindrome (435214424412534).

The spelling of 312202311210321 in words is "three hundred twelve trillion, two hundred two billion, three hundred eleven million, two hundred ten thousand, three hundred twenty-one".