113121340 has 24 divisors (see below), whose sum is σ = 238768992. Its totient is φ = 45017280.

The previous prime is 113121317. The next prime is 113121341. The reversal of 113121340 is 43121311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113121341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10416 + ... + 18295.

It is an arithmetic number, because the mean of its divisors is an integer number (9948708).

Almost surely, 2^113121340 is an apocalyptic number.

113121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113121340 is an abundant number, since it is smaller than the sum of its proper divisors (125647652).

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

113121340 is a wasteful number, since it uses less digits than its factorization.

113121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28917 (or 28915 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113121340 is about 10635.8516349186. The cubic root of 113121340 is about 483.6317976886.

Adding to 113121340 its reverse (43121311), we get a palindrome (156242651).

The spelling of 113121340 in words is "one hundred thirteen million, one hundred twenty-one thousand, three hundred forty".