101111139 has 32 divisors (see below), whose sum is σ = 155865600. Its totient is φ = 64703520.

The previous prime is 101111123. The next prime is 101111203. The reversal of 101111139 is 931111101.

It is not a de Polignac number, because 101111139 - 2⁴ = 101111123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101111239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205684 + ... + 206174.

It is an arithmetic number, because the mean of its divisors is an integer number (4870800).

Almost surely, 2^101111139 is an apocalyptic number.

101111139 is a deficient number, since it is larger than the sum of its proper divisors (54754461).

101111139 is a wasteful number, since it uses less digits than its factorization.

101111139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 18.

The square root of 101111139 is about 10055.4034727603. The cubic root of 101111139 is about 465.8717051208.

The spelling of 101111139 in words is "one hundred one million, one hundred eleven thousand, one hundred thirty-nine".