113040242509 has 4 divisors (see below), whose sum is σ = 113041181440. Its totient is φ = 113039303580.

The previous prime is 113040242489. The next prime is 113040242543. The reversal of 113040242509 is 905242040311.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 113040242509 - 2¹³ = 113040234317 is a prime.

It is a super-3 number, since 3×113040242509³ (a number of 34 digits) contains 333 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 (113040242009) 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, 256749 + ... + 540370.

It is an arithmetic number, because the mean of its divisors is an integer number (28260295360).

Almost surely, 2^113040242509 is an apocalyptic number.

It is an amenable number.

113040242509 is a deficient number, since it is larger than the sum of its proper divisors (938931).

113040242509 is an equidigital number, since it uses as much as digits as its factorization.

113040242509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938930.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 113040242509 in words is "one hundred thirteen billion, forty million, two hundred forty-two thousand, five hundred nine".