113215055211 has 56 divisors (see below), whose sum is σ = 170770320000. Its totient is φ = 75022474752.

The previous prime is 113215055203. The next prime is 113215055257. The reversal of 113215055211 is 112550512311.

It is a happy number.

113215055211 is a `hidden beast` number, since 1 + 132 + 1 + 5 + 0 + 5 + 521 + 1 = 666.

It is not a de Polignac number, because 113215055211 - 2³ = 113215055203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (113215051211) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 121867195 + ... + 121868123.

It is an arithmetic number, because the mean of its divisors is an integer number (3049470000).

Almost surely, 2^113215055211 is an apocalyptic number.

113215055211 is a deficient number, since it is larger than the sum of its proper divisors (57555264789).

113215055211 is an frugal number, since it uses more digits than its factorization.

113215055211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 113215055211 its reverse (112550512311), we get a palindrome (225765567522).

The spelling of 113215055211 in words is "one hundred thirteen billion, two hundred fifteen million, fifty-five thousand, two hundred eleven".