115107147021 has 8 divisors (see below), whose sum is σ = 153512955904. Its totient is φ = 76719718080.

The previous prime is 115107146971. The next prime is 115107147053. The reversal of 115107147021 is 120741701511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115107147021 - 2⁷ = 115107146893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115107147021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115107147821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4580365 + ... + 4605426.

It is an arithmetic number, because the mean of its divisors is an integer number (19189119488).

Almost surely, 2^115107147021 is an apocalyptic number.

It is an amenable number.

115107147021 is a deficient number, since it is larger than the sum of its proper divisors (38405808883).

115107147021 is an equidigital number, since it uses as much as digits as its factorization.

115107147021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9189971.

The product of its (nonzero) digits is 1960, while the sum is 30.

Adding to 115107147021 its reverse (120741701511), we get a palindrome (235848848532).

The spelling of 115107147021 in words is "one hundred fifteen billion, one hundred seven million, one hundred forty-seven thousand, twenty-one".