115231504205213 has 4 divisors (see below), whose sum is σ = 125707095496608. Its totient is φ = 104755912913820.

The previous prime is 115231504205131. The next prime is 115231504205273. The reversal of 115231504205213 is 312502405132511.

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 115231504205213 - 2³⁶ = 115162784728477 is a prime.

It is a super-2 number, since 2×115231504205213² (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 (115231504205273) 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, 5237795645681 + ... + 5237795645702.

It is an arithmetic number, because the mean of its divisors is an integer number (31426773874152).

Almost surely, 2^{115231504205213} is an apocalyptic number.

It is an amenable number.

115231504205213 is a deficient number, since it is larger than the sum of its proper divisors (10475591291395).

115231504205213 is a wasteful number, since it uses less digits than its factorization.

115231504205213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475591291394.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 115231504205213 its reverse (312502405132511), we get a palindrome (427733909337724).

The spelling of 115231504205213 in words is "one hundred fifteen trillion, two hundred thirty-one billion, five hundred four million, two hundred five thousand, two hundred thirteen".