115430440020 has 48 divisors (see below), whose sum is σ = 369377409408. Its totient is φ = 26384100480.

The previous prime is 115430440003. The next prime is 115430440033. The reversal of 115430440020 is 20044034511.

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, 137416771 + ... + 137417610.

It is an arithmetic number, because the mean of its divisors is an integer number (7695362696).

Almost surely, 2^115430440020 is an apocalyptic number.

115430440020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115430440020 is an abundant number, since it is smaller than the sum of its proper divisors (253946969388).

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

115430440020 is a wasteful number, since it uses less digits than its factorization.

115430440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274834400 (or 274834398 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 115430440020 its reverse (20044034511), we get a palindrome (135474474531).

The spelling of 115430440020 in words is "one hundred fifteen billion, four hundred thirty million, four hundred forty thousand, twenty".