113521034431 has 8 divisors (see below), whose sum is σ = 129740893344. Its totient is φ = 97301817600.

The previous prime is 113521034387. The next prime is 113521034503. The reversal of 113521034431 is 134430125311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113521034431 - 2¹⁹ = 113520510143 is a prime.

It is a super-2 number, since 2×113521034431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113521034431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113521031431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310491 + ... + 568723.

It is an arithmetic number, because the mean of its divisors is an integer number (16217611668).

Almost surely, 2^113521034431 is an apocalyptic number.

113521034431 is a deficient number, since it is larger than the sum of its proper divisors (16219858913).

113521034431 is an equidigital number, since it uses as much as digits as its factorization.

113521034431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321041.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 113521034431 its reverse (134430125311), we get a palindrome (247951159742).

The spelling of 113521034431 in words is "one hundred thirteen billion, five hundred twenty-one million, thirty-four thousand, four hundred thirty-one".