11121111021239 has 2 divisors, whose sum is σ = 11121111021240. Its totient is φ = 11121111021238.

The previous prime is 11121111021179. The next prime is 11121111021283. The reversal of 11121111021239 is 93212011112111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121111021239 - 2²⁴ = 11121094244023 is a prime.

It is a super-2 number, since 2×11121111021239² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121111021299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560555510619 + 5560555510620.

It is an arithmetic number, because the mean of its divisors is an integer number (5560555510620).

Almost surely, 2^{11121111021239} is an apocalyptic number.

11121111021239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121111021239 is an equidigital number, since it uses as much as digits as its factorization.

11121111021239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 26.

The spelling of 11121111021239 in words is "eleven trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, two hundred thirty-nine".