21413230425431 has 48 divisors (see below), whose sum is σ = 24938351133696. Its totient is φ = 18233147604672.

The previous prime is 21413230425401. The next prime is 21413230425451. The reversal of 21413230425431 is 13452403231412.

It is not a de Polignac number, because 21413230425431 - 2²² = 21413226231127 is a prime.

It is a super-2 number, since 2×21413230425431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21413230425391 and 21413230425400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21413230425401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80107106 + ... + 80373968.

It is an arithmetic number, because the mean of its divisors is an integer number (519548981952).

Almost surely, 2^{21413230425431} is an apocalyptic number.

21413230425431 is a deficient number, since it is larger than the sum of its proper divisors (3525120708265).

21413230425431 is a wasteful number, since it uses less digits than its factorization.

21413230425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267100 (or 267021 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 21413230425431 its reverse (13452403231412), we get a palindrome (34865633656843).

The spelling of 21413230425431 in words is "twenty-one trillion, four hundred thirteen billion, two hundred thirty million, four hundred twenty-five thousand, four hundred thirty-one".