11211112139 has 2 divisors, whose sum is σ = 11211112140. Its totient is φ = 11211112138.

The previous prime is 11211112097. The next prime is 11211112183. The reversal of 11211112139 is 93121111211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211112139 - 2²⁴ = 11194334923 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211142139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605556069 + 5605556070.

It is an arithmetic number, because the mean of its divisors is an integer number (5605556070).

Almost surely, 2^11211112139 is an apocalyptic number.

11211112139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211112139 is an equidigital number, since it uses as much as digits as its factorization.

11211112139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 23.

The spelling of 11211112139 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, one hundred thirty-nine".