113130421 has 16 divisors (see below), whose sum is σ = 119528640. Its totient is φ = 106928640.

The previous prime is 113130397. The next prime is 113130431. The reversal of 113130421 is 124031311.

It is a cyclic number.

It is not a de Polignac number, because 113130421 - 2¹¹ = 113128373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113130395 and 113130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113130431) 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, 368350 + ... + 368656.

It is an arithmetic number, because the mean of its divisors is an integer number (7470540).

Almost surely, 2^113130421 is an apocalyptic number.

It is an amenable number.

113130421 is a deficient number, since it is larger than the sum of its proper divisors (6398219).

113130421 is a wasteful number, since it uses less digits than its factorization.

113130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113130421 is about 10636.2785315166. The cubic root of 113130421 is about 483.6447387860.

Adding to 113130421 its reverse (124031311), we get a palindrome (237161732).

The spelling of 113130421 in words is "one hundred thirteen million, one hundred thirty thousand, four hundred twenty-one".