21425632112313 has 24 divisors (see below), whose sum is σ = 36358648435200. Its totient is φ = 11986367614560.

The previous prime is 21425632112263. The next prime is 21425632112321. The reversal of 21425632112313 is 31321123652412.

21425632112313 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 5 + 6 + 321 + 12 + 313 = 666.

It is not a de Polignac number, because 21425632112313 - 2⁹ = 21425632111801 is a prime.

It is a super-2 number, since 2×21425632112313² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21425632112333) 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, 8323865113 + ... + 8323867686.

It is an arithmetic number, because the mean of its divisors is an integer number (1514943684800).

Almost surely, 2^{21425632112313} is an apocalyptic number.

It is an amenable number.

21425632112313 is a deficient number, since it is larger than the sum of its proper divisors (14933016322887).

21425632112313 is a wasteful number, since it uses less digits than its factorization.

21425632112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16647732829 (or 16647732826 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 21425632112313 its reverse (31321123652412), we get a palindrome (52746755764725).

The spelling of 21425632112313 in words is "twenty-one trillion, four hundred twenty-five billion, six hundred thirty-two million, one hundred twelve thousand, three hundred thirteen".