101012109999 has 16 divisors (see below), whose sum is σ = 140667354240. Its totient is φ = 64410832800.

The previous prime is 101012109997. The next prime is 101012110007. The reversal of 101012109999 is 999901210101.

It is not a de Polignac number, because 101012109999 - 2¹ = 101012109997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101012109999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012109997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7705477 + ... + 7718574.

It is an arithmetic number, because the mean of its divisors is an integer number (8791709640).

Almost surely, 2^101012109999 is an apocalyptic number.

101012109999 is a deficient number, since it is larger than the sum of its proper divisors (39655244241).

101012109999 is a wasteful number, since it uses less digits than its factorization.

101012109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15424150.

The product of its (nonzero) digits is 13122, while the sum is 42.

The spelling of 101012109999 in words is "one hundred one billion, twelve million, one hundred nine thousand, nine hundred ninety-nine".