115123420 has 48 divisors (see below), whose sum is σ = 250151328. Its totient is φ = 44478720.

The previous prime is 115123403. The next prime is 115123423. The reversal of 115123420 is 24321511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115123423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70210 + ... + 71830.

It is an arithmetic number, because the mean of its divisors is an integer number (5211486).

Almost surely, 2^115123420 is an apocalyptic number.

115123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115123420 is an abundant number, since it is smaller than the sum of its proper divisors (135027908).

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

115123420 is a wasteful number, since it uses less digits than its factorization.

115123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 115123420 is about 10729.5582388093. The cubic root of 115123420 is about 486.4683174523.

Adding to 115123420 its reverse (24321511), we get a palindrome (139444931).

The spelling of 115123420 in words is "one hundred fifteen million, one hundred twenty-three thousand, four hundred twenty".