102115988851 has 8 divisors (see below), whose sum is σ = 107496448400. Its totient is φ = 96736122720.

The previous prime is 102115988839. The next prime is 102115989023. The reversal of 102115988851 is 158889511201.

It is a happy number.

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

It is not a de Polignac number, because 102115988851 - 2⁹ = 102115988339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102115988795 and 102115988804.

It is not an unprimeable number, because it can be changed into a prime (102115988831) 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, 229585 + ... + 506893.

It is an arithmetic number, because the mean of its divisors is an integer number (13437056050).

Almost surely, 2^102115988851 is an apocalyptic number.

102115988851 is a deficient number, since it is larger than the sum of its proper divisors (5380459549).

102115988851 is a wasteful number, since it uses less digits than its factorization.

102115988851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296709.

The product of its (nonzero) digits is 230400, while the sum is 49.

The spelling of 102115988851 in words is "one hundred two billion, one hundred fifteen million, nine hundred eighty-eight thousand, eight hundred fifty-one".