113110021231 has 4 divisors (see below), whose sum is σ = 113113915000. Its totient is φ = 113106127464.

The previous prime is 113110021183. The next prime is 113110021267. The reversal of 113110021231 is 132120011311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132120011311 = 29 ⋅4555862459.

It is a cyclic number.

It is not a de Polignac number, because 113110021231 - 2¹⁵ = 113109988463 is a prime.

It is a super-3 number, since 3×113110021231³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113110021831) 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, 1902981 + ... + 1961518.

It is an arithmetic number, because the mean of its divisors is an integer number (28278478750).

Almost surely, 2^113110021231 is an apocalyptic number.

113110021231 is a deficient number, since it is larger than the sum of its proper divisors (3893769).

113110021231 is an equidigital number, since it uses as much as digits as its factorization.

113110021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893768.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113110021231 its reverse (132120011311), we get a palindrome (245230032542).

The spelling of 113110021231 in words is "one hundred thirteen billion, one hundred ten million, twenty-one thousand, two hundred thirty-one".