115111661430 has 32 divisors (see below), whose sum is σ = 277794343008. Its totient is φ = 30526848000.

The previous prime is 115111661387. The next prime is 115111661449. The reversal of 115111661430 is 34166111511.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 10594171 + ... + 10605030.

It is an arithmetic number, because the mean of its divisors is an integer number (8681073219).

Almost surely, 2^115111661430 is an apocalyptic number.

115111661430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115111661430 is an abundant number, since it is smaller than the sum of its proper divisors (162682681578).

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

115111661430 is a wasteful number, since it uses less digits than its factorization.

115111661430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21199392.

The product of its (nonzero) digits is 2160, while the sum is 30.

Adding to 115111661430 its reverse (34166111511), we get a palindrome (149277772941).

The spelling of 115111661430 in words is "one hundred fifteen billion, one hundred eleven million, six hundred sixty-one thousand, four hundred thirty".