113121003000 has 256 divisors, whose sum is σ = 380161267200. Its totient is φ = 27912729600.

The previous prime is 113121002987. The next prime is 113121003029. The reversal of 113121003000 is 300121311.

It is a super-2 number, since 2×113121003000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2427924 + ... + 2474076.

It is an arithmetic number, because the mean of its divisors is an integer number (1485004950).

Almost surely, 2^113121003000 is an apocalyptic number.

113121003000 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 113121003000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190080633600).

113121003000 is an abundant number, since it is smaller than the sum of its proper divisors (267040264200).

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

113121003000 is a wasteful number, since it uses less digits than its factorization.

113121003000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46239 (or 46225 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 113121003000 its reverse (300121311), we get a palindrome (113421124311).

The spelling of 113121003000 in words is "one hundred thirteen billion, one hundred twenty-one million, three thousand".