113020121304 has 48 divisors (see below), whose sum is σ = 312608855520. Its totient is φ = 36871811520.

The previous prime is 113020121287. The next prime is 113020121309. The reversal of 113020121304 is 403121020311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113020121309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16695807 + ... + 16702574.

It is an arithmetic number, because the mean of its divisors is an integer number (6512684490).

Almost surely, 2^113020121304 is an apocalyptic number.

It is an amenable number.

113020121304 is an abundant number, since it is smaller than the sum of its proper divisors (199588734216).

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

113020121304 is a wasteful number, since it uses less digits than its factorization.

113020121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33398440 (or 33398433 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113020121304 its reverse (403121020311), we get a palindrome (516141141615).

The spelling of 113020121304 in words is "one hundred thirteen billion, twenty million, one hundred twenty-one thousand, three hundred four".