13201234431 has 48 divisors (see below), whose sum is σ = 22143593472. Its totient is φ = 6847727040.

The previous prime is 13201234429. The next prime is 13201234433. The reversal of 13201234431 is 13443210231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13201234429) and next prime (13201234433).

It is not a de Polignac number, because 13201234431 - 2¹ = 13201234429 is a prime.

It is a super-2 number, since 2×13201234431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201234433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1920106 + ... + 1926968.

It is an arithmetic number, because the mean of its divisors is an integer number (461324864).

Almost surely, 2^13201234431 is an apocalyptic number.

13201234431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13201234431 is a deficient number, since it is larger than the sum of its proper divisors (8942359041).

13201234431 is a wasteful number, since it uses less digits than its factorization.

13201234431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13201234431 its reverse (13443210231), we get a palindrome (26644444662).

The spelling of 13201234431 in words is "thirteen billion, two hundred one million, two hundred thirty-four thousand, four hundred thirty-one".