113022381 has 4 divisors (see below), whose sum is σ = 150696512. Its totient is φ = 75348252.

The previous prime is 113022379. The next prime is 113022419. The reversal of 113022381 is 183220311.

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 not a de Polignac number, because 113022381 - 2¹ = 113022379 is a prime.

It is a super-2 number, since 2×113022381² = 25548117213818322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113022331) 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, 18837061 + ... + 18837066.

It is an arithmetic number, because the mean of its divisors is an integer number (37674128).

Almost surely, 2^113022381 is an apocalyptic number.

It is an amenable number.

113022381 is a deficient number, since it is larger than the sum of its proper divisors (37674131).

113022381 is an equidigital number, since it uses as much as digits as its factorization.

113022381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37674130.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 113022381 is about 10631.1984743019. The cubic root of 113022381 is about 483.4907288687.

Adding to 113022381 its reverse (183220311), we get a palindrome (296242692).

The spelling of 113022381 in words is "one hundred thirteen million, twenty-two thousand, three hundred eighty-one".