115001111001 has 16 divisors (see below), whose sum is σ = 178816112000. Its totient is φ = 65714919984.

The previous prime is 115001110981. The next prime is 115001111041. The reversal of 115001111001 is 100111100511.

It is a happy number.

It is not a de Polignac number, because 115001111001 - 2⁹ = 115001110489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115001111041) 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, 55879006 + ... + 55881063.

It is an arithmetic number, because the mean of its divisors is an integer number (11176007000).

Almost surely, 2^115001111001 is an apocalyptic number.

It is an amenable number.

115001111001 is a deficient number, since it is larger than the sum of its proper divisors (63815000999).

115001111001 is an equidigital number, since it uses as much as digits as its factorization.

115001111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111760093 (or 111760079 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 12.

Adding to 115001111001 its reverse (100111100511), we get a palindrome (215112211512).

The spelling of 115001111001 in words is "one hundred fifteen billion, one million, one hundred eleven thousand, one".