113230231009 has 27 divisors (see below), whose sum is σ = 134397090387. Its totient is φ = 95118279984.

The previous prime is 113230231003. The next prime is 113230231013. The reversal of 113230231009 is 900132032311.

The square root of 113230231009 is 336497.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 81627347025 + 31602883984 = 285705^2 + 177772^2 .

It is not a de Polignac number, because 113230231009 - 2⁷ = 113230230881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113230231003) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 124839934 + ... + 124840840.

Almost surely, 2^113230231009 is an apocalyptic number.

113230231009 is the 336497-th square number.

113230231009 is the 168249-th centered octagonal number.

It is an amenable number.

113230231009 is a deficient number, since it is larger than the sum of its proper divisors (21166859378).

113230231009 is an frugal number, since it uses more digits than its factorization.

113230231009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Multiplying 113230231009 by its sum of digits (25), we get a square (2830755775225 = 1682485²).

The spelling of 113230231009 in words is "one hundred thirteen billion, two hundred thirty million, two hundred thirty-one thousand, nine".