115161121110 has 64 divisors (see below), whose sum is σ = 315900974592. Its totient is φ = 26320002816.

The previous prime is 115161121069. The next prime is 115161121139. The reversal of 115161121110 is 11121161511.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2952757 + ... + 2991503.

It is an arithmetic number, because the mean of its divisors is an integer number (4935952728).

Almost surely, 2^115161121110 is an apocalyptic number.

115161121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115161121110 is an abundant number, since it is smaller than the sum of its proper divisors (200739853482).

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

115161121110 is a wasteful number, since it uses less digits than its factorization.

115161121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52917.

The product of its (nonzero) digits is 60, while the sum is 21.

Adding to 115161121110 its reverse (11121161511), we get a palindrome (126282282621).

The spelling of 115161121110 in words is "one hundred fifteen billion, one hundred sixty-one million, one hundred twenty-one thousand, one hundred ten".