101208128815 has 8 divisors (see below), whose sum is σ = 121525339680. Its totient is φ = 80916112992.

The previous prime is 101208128789. The next prime is 101208128869. The reversal of 101208128815 is 518821802101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101208128815 is a prime.

It is a congruent number.

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, 6289920 + ... + 6305989.

It is an arithmetic number, because the mean of its divisors is an integer number (15190667460).

Almost surely, 2^101208128815 is an apocalyptic number.

101208128815 is a deficient number, since it is larger than the sum of its proper divisors (20317210865).

101208128815 is a wasteful number, since it uses less digits than its factorization.

101208128815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12597521.

The product of its (nonzero) digits is 10240, while the sum is 37.

The spelling of 101208128815 in words is "one hundred one billion, two hundred eight million, one hundred twenty-eight thousand, eight hundred fifteen".