113710021 has 4 divisors (see below), whose sum is σ = 113821344. Its totient is φ = 113598700.

The previous prime is 113710007. The next prime is 113710031. The reversal of 113710021 is 120017311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113710021 - 2²³ = 105321413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113709977 and 113710004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113710001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54115 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (28455336).

Almost surely, 2^113710021 is an apocalyptic number.

It is an amenable number.

113710021 is a deficient number, since it is larger than the sum of its proper divisors (111323).

113710021 is a wasteful number, since it uses less digits than its factorization.

113710021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111322.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 113710021 is about 10663.4900947110. The cubic root of 113710021 is about 484.4692830744.

Adding to 113710021 its reverse (120017311), we get a palindrome (233727332).

The spelling of 113710021 in words is "one hundred thirteen million, seven hundred ten thousand, twenty-one".