113505144250231 has 16 divisors (see below), whose sum is σ = 114291656691264. Its totient is φ = 112721344856064.

The previous prime is 113505144250193. The next prime is 113505144250261. The reversal of 113505144250231 is 132052441505311.

It is a cyclic number.

It is not a de Polignac number, because 113505144250231 - 2¹¹ = 113505144248183 is a prime.

It is a super-2 number, since 2×113505144250231² (a number of 29 digits) 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 (113505144250261) 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, 2178450126 + ... + 2178502228.

It is an arithmetic number, because the mean of its divisors is an integer number (7143228543204).

Almost surely, 2^{113505144250231} is an apocalyptic number.

113505144250231 is a deficient number, since it is larger than the sum of its proper divisors (786512441033).

113505144250231 is a wasteful number, since it uses less digits than its factorization.

113505144250231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77850.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 113505144250231 its reverse (132052441505311), we get a palindrome (245557585755542).

The spelling of 113505144250231 in words is "one hundred thirteen trillion, five hundred five billion, one hundred forty-four million, two hundred fifty thousand, two hundred thirty-one".