115123380 has 48 divisors (see below), whose sum is σ = 322937664. Its totient is φ = 30643200.

The previous prime is 115123373. The next prime is 115123397. The reversal of 115123380 is 83321511.

It is a self number, because there is not a number n which added to its sum of digits gives 115123380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38955 + ... + 41805.

It is an arithmetic number, because the mean of its divisors is an integer number (6727868).

Almost surely, 2^115123380 is an apocalyptic number.

115123380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115123380 is an abundant number, since it is smaller than the sum of its proper divisors (207814284).

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

115123380 is a wasteful number, since it uses less digits than its factorization.

115123380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 115123380 is about 10729.5563747995. The cubic root of 115123380 is about 486.4682611107.

Adding to 115123380 its reverse (83321511), we get a palindrome (198444891).

It can be divided in two parts, 1151 and 23380, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 115123380 in words is "one hundred fifteen million, one hundred twenty-three thousand, three hundred eighty".