13242100431 has 16 divisors (see below), whose sum is σ = 21055762944. Its totient is φ = 7237917984.

The previous prime is 13242100429. The next prime is 13242100439. The reversal of 13242100431 is 13400124231.

It is not a de Polignac number, because 13242100431 - 2¹ = 13242100429 is a prime.

It is a super-2 number, since 2×13242100431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13242100398 and 13242100407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242100439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13707696 + ... + 13708661.

It is an arithmetic number, because the mean of its divisors is an integer number (1315985184).

Almost surely, 2^13242100431 is an apocalyptic number.

13242100431 is a deficient number, since it is larger than the sum of its proper divisors (7813662513).

13242100431 is a wasteful number, since it uses less digits than its factorization.

13242100431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27416390.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13242100431 its reverse (13400124231), we get a palindrome (26642224662).

The spelling of 13242100431 in words is "thirteen billion, two hundred forty-two million, one hundred thousand, four hundred thirty-one".