101111109999999 has 32 divisors (see below), whose sum is σ = 155242498406400. Its totient is φ = 57892514772960.

The previous prime is 101111109999931. The next prime is 101111110000079. The reversal of 101111109999999 is 999999901111101.

It is not a de Polignac number, because 101111109999999 - 2⁸ = 101111109999743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111109999919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224373429 + ... + 224823614.

It is an arithmetic number, because the mean of its divisors is an integer number (4851328075200).

Almost surely, 2^{101111109999999} is an apocalyptic number.

101111109999999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

101111109999999 is a deficient number, since it is larger than the sum of its proper divisors (54131388406401).

101111109999999 is a wasteful number, since it uses less digits than its factorization.

101111109999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449197435.

The product of its (nonzero) digits is 4782969, while the sum is 69.

The spelling of 101111109999999 in words is "one hundred one trillion, one hundred eleven billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".