10101099987 has 48 divisors (see below), whose sum is σ = 16320724992. Its totient is φ = 5967605760.

The previous prime is 10101099961. The next prime is 10101099989. The reversal of 10101099987 is 78999010101.

It is not a de Polignac number, because 10101099987 - 2⁷ = 10101099859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10101099989) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1191598 + ... + 1200044.

It is an arithmetic number, because the mean of its divisors is an integer number (340015104).

Almost surely, 2^10101099987 is an apocalyptic number.

10101099987 is a deficient number, since it is larger than the sum of its proper divisors (6219625005).

10101099987 is a wasteful number, since it uses less digits than its factorization.

10101099987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768 (or 8765 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 45.

The spelling of 10101099987 in words is "ten billion, one hundred one million, ninety-nine thousand, nine hundred eighty-seven".