113240432421 has 24 divisors (see below), whose sum is σ = 172200275520. Its totient is φ = 71511201216.

The previous prime is 113240432407. The next prime is 113240432423. The reversal of 113240432421 is 124234042311.

113240432421 is a `hidden beast` number, since 1 + 13 + 2 + 404 + 3 + 242 + 1 = 666.

It is not a de Polignac number, because 113240432421 - 2¹⁰ = 113240431397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113240432423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1468401 + ... + 1543593.

It is an arithmetic number, because the mean of its divisors is an integer number (7175011480).

Almost surely, 2^113240432421 is an apocalyptic number.

It is an amenable number.

113240432421 is a deficient number, since it is larger than the sum of its proper divisors (58959843099).

113240432421 is a wasteful number, since it uses less digits than its factorization.

113240432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84025 (or 84022 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 113240432421 its reverse (124234042311), we get a palindrome (237474474732).

The spelling of 113240432421 in words is "one hundred thirteen billion, two hundred forty million, four hundred thirty-two thousand, four hundred twenty-one".