115113405400 has 96 divisors (see below), whose sum is σ = 306644703840. Its totient is φ = 39367848960.

The previous prime is 115113405389. The next prime is 115113405419. The reversal of 115113405400 is 4504311511.

It is a super-2 number, since 2×115113405400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452244 + ... + 659356.

It is an arithmetic number, because the mean of its divisors is an integer number (3194215665).

Almost surely, 2^115113405400 is an apocalyptic number.

115113405400 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 115113405400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153322351920).

115113405400 is an abundant number, since it is smaller than the sum of its proper divisors (191531298440).

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

115113405400 is a wasteful number, since it uses less digits than its factorization.

115113405400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207533 (or 207524 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 115113405400 its reverse (4504311511), we get a palindrome (119617716911).

The spelling of 115113405400 in words is "one hundred fifteen billion, one hundred thirteen million, four hundred five thousand, four hundred".