313121001423321 has 192 divisors, whose sum is σ = 581573708352000. Its totient is φ = 157890588291072.

The previous prime is 313121001423319. The next prime is 313121001423341. The reversal of 313121001423321 is 123324100121313.

313121001423321 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 210 + 0 + 1 + 423 + 3 + 21 = 666.

It is not a de Polignac number, because 313121001423321 - 2¹ = 313121001423319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313121001423311) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1107534046 + ... + 1107816728.

It is an arithmetic number, because the mean of its divisors is an integer number (3029029731000).

Almost surely, 2^{313121001423321} is an apocalyptic number.

It is an amenable number.

313121001423321 is a deficient number, since it is larger than the sum of its proper divisors (268452706928679).

313121001423321 is a wasteful number, since it uses less digits than its factorization.

313121001423321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283200 (or 283197 counting only the distinct ones).

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

Adding to 313121001423321 its reverse (123324100121313), we get a palindrome (436445101544634).

The spelling of 313121001423321 in words is "three hundred thirteen trillion, one hundred twenty-one billion, one million, four hundred twenty-three thousand, three hundred twenty-one".