23013201321 has 24 divisors (see below), whose sum is σ = 36284327040. Its totient is φ = 13939279200.

The previous prime is 23013201271. The next prime is 23013201329. The reversal of 23013201321 is 12310231032.

23013201321 is a `hidden beast` number, since 23 + 0 + 1 + 320 + 1 + 321 = 666.

It is not a de Polignac number, because 23013201321 - 2⁷ = 23013201193 is a prime.

It is a super-2 number, since 2×23013201321² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23013201294 and 23013201303.

It is not an unprimeable number, because it can be changed into a prime (23013201329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105600 + ... + 239118.

It is an arithmetic number, because the mean of its divisors is an integer number (1511846960).

Almost surely, 2^23013201321 is an apocalyptic number.

It is an amenable number.

23013201321 is a deficient number, since it is larger than the sum of its proper divisors (13271125719).

23013201321 is a wasteful number, since it uses less digits than its factorization.

23013201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135277 (or 135274 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23013201321 its reverse (12310231032), we get a palindrome (35323432353).

The spelling of 23013201321 in words is "twenty-three billion, thirteen million, two hundred one thousand, three hundred twenty-one".