113220402432 has 144 divisors (see below), whose sum is σ = 314487714240. Its totient is φ = 36115480576.

The previous prime is 113220402377. The next prime is 113220402433. The reversal of 113220402432 is 234204022311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113220402433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494243 + ... + 2539229.

It is an arithmetic number, because the mean of its divisors is an integer number (2183942460).

Almost surely, 2^113220402432 is an apocalyptic number.

113220402432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113220402432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157243857120).

113220402432 is an abundant number, since it is smaller than the sum of its proper divisors (201267311808).

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

113220402432 is a wasteful number, since it uses less digits than its factorization.

113220402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45148 (or 45134 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 113220402432 its reverse (234204022311), we get a palindrome (347424424743).

The spelling of 113220402432 in words is "one hundred thirteen billion, two hundred twenty million, four hundred two thousand, four hundred thirty-two".