316423533612321 has 24 divisors (see below), whose sum is σ = 457262760876480. Its totient is φ = 210853698064800.

The previous prime is 316423533612313. The next prime is 316423533612353. The reversal of 316423533612321 is 123216335324613.

316423533612321 is a `hidden beast` number, since 3 + 1 + 6 + 4 + 2 + 3 + 5 + 3 + 3 + 612 + 3 + 21 = 666.

It is not a de Polignac number, because 316423533612321 - 2³ = 316423533612313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (316423533612371) 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, 991574131 + ... + 991893191.

It is an arithmetic number, because the mean of its divisors is an integer number (19052615036520).

Almost surely, 2^{316423533612321} is an apocalyptic number.

It is an amenable number.

316423533612321 is a deficient number, since it is larger than the sum of its proper divisors (140839227264159).

316423533612321 is a wasteful number, since it uses less digits than its factorization.

316423533612321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368517 (or 368514 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

Adding to 316423533612321 its reverse (123216335324613), we get a palindrome (439639868936934).

The spelling of 316423533612321 in words is "three hundred sixteen trillion, four hundred twenty-three billion, five hundred thirty-three million, six hundred twelve thousand, three hundred twenty-one".