113449192920 has 320 divisors, whose sum is σ = 436241203200. Its totient is φ = 25904344320.

The previous prime is 113449192903. The next prime is 113449192951. The reversal of 113449192920 is 29291944311.

113449192920 is a `hidden beast` number, since 1 + 1 + 344 + 9 + 19 + 292 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29005765 + ... + 29009675.

It is an arithmetic number, because the mean of its divisors is an integer number (1363253760).

Almost surely, 2^113449192920 is an apocalyptic number.

113449192920 is a gapful number since it is divisible by the number (10) 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 113449192920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218120601600).

113449192920 is an abundant number, since it is smaller than the sum of its proper divisors (322792010280).

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

113449192920 is a wasteful number, since it uses less digits than its factorization.

113449192920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220 (or 5207 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 113449192920 in words is "one hundred thirteen billion, four hundred forty-nine million, one hundred ninety-two thousand, nine hundred twenty".