113198691900 has 144 divisors (see below), whose sum is σ = 377809318656. Its totient is φ = 25632122880.

The previous prime is 113198691887. The next prime is 113198691953. The reversal of 113198691900 is 9196891311.

It is a happy number.

It is a super-2 number, since 2×113198691900² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113198691900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27189 + ... + 476588.

It is an arithmetic number, because the mean of its divisors is an integer number (2623675824).

Almost surely, 2^113198691900 is an apocalyptic number.

113198691900 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 113198691900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188904659328).

113198691900 is an abundant number, since it is smaller than the sum of its proper divisors (264610626756).

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

113198691900 is a wasteful number, since it uses less digits than its factorization.

113198691900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503908 (or 503901 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 48.

The spelling of 113198691900 in words is "one hundred thirteen billion, one hundred ninety-eight million, six hundred ninety-one thousand, nine hundred".