102002121115 has 8 divisors (see below), whose sum is σ = 122710866480. Its totient is φ = 81396149472.

The previous prime is 102002121101. The next prime is 102002121139. The reversal of 102002121115 is 511121200201.

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

It is a cyclic number.

It is not a de Polignac number, because 102002121115 - 2²⁵ = 101968566683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25691245 + ... + 25695214.

It is an arithmetic number, because the mean of its divisors is an integer number (15338858310).

Almost surely, 2^102002121115 is an apocalyptic number.

102002121115 is a deficient number, since it is larger than the sum of its proper divisors (20708745365).

102002121115 is an equidigital number, since it uses as much as digits as its factorization.

102002121115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51386861.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 102002121115 its reverse (511121200201), we get a palindrome (613123321316).

The spelling of 102002121115 in words is "one hundred two billion, two million, one hundred twenty-one thousand, one hundred fifteen".