113123126512 has 120 divisors (see below), whose sum is σ = 250000248960. Its totient is φ = 49513833600.

The previous prime is 113123126483. The next prime is 113123126521. The reversal of 113123126512 is 215621321311.

113123126512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×113123126512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5901039 + ... + 5920177.

It is an arithmetic number, because the mean of its divisors is an integer number (2083335408).

Almost surely, 2^113123126512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113123126512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125000124480).

113123126512 is an abundant number, since it is smaller than the sum of its proper divisors (136877122448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113123126512 is a wasteful number, since it uses less digits than its factorization.

113123126512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19283 (or 19266 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

Adding to 113123126512 its reverse (215621321311), we get a palindrome (328744447823).

The spelling of 113123126512 in words is "one hundred thirteen billion, one hundred twenty-three million, one hundred twenty-six thousand, five hundred twelve".