12113301021 has 16 divisors (see below), whose sum is σ = 17135001600. Its totient is φ = 7590261168.

The previous prime is 12113301017. The next prime is 12113301107. The reversal of 12113301021 is 12010331121.

It is a happy number.

It is not a de Polignac number, because 12113301021 - 2² = 12113301017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113301521) 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, 829431 + ... + 843908.

It is an arithmetic number, because the mean of its divisors is an integer number (1070937600).

Almost surely, 2^12113301021 is an apocalyptic number.

It is an amenable number.

12113301021 is a deficient number, since it is larger than the sum of its proper divisors (5021700579).

12113301021 is a wasteful number, since it uses less digits than its factorization.

12113301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673488.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12113301021 its reverse (12010331121), we get a palindrome (24123632142).

The spelling of 12113301021 in words is "twelve billion, one hundred thirteen million, three hundred one thousand, twenty-one".