83111011139 has 6 divisors (see below), whose sum is σ = 89995947156. Its totient is φ = 76717856280.

The previous prime is 83111011099. The next prime is 83111011141. The reversal of 83111011139 is 93111011138.

It is a de Polignac number, because none of the positive numbers 2^k-83111011139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83111010139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245890397 + ... + 245890734.

It is an arithmetic number, because the mean of its divisors is an integer number (14999324526).

Almost surely, 2^83111011139 is an apocalyptic number.

83111011139 is a deficient number, since it is larger than the sum of its proper divisors (6884936017).

83111011139 is a wasteful number, since it uses less digits than its factorization.

83111011139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491781157 (or 491781144 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

Subtracting 83111011139 from its reverse (93111011138), we obtain a palindrome (9999999999).

The spelling of 83111011139 in words is "eighty-three billion, one hundred eleven million, eleven thousand, one hundred thirty-nine".