121111011139 has 2 divisors, whose sum is σ = 121111011140. Its totient is φ = 121111011138.

The previous prime is 121111011107. The next prime is 121111011157. The reversal of 121111011139 is 931110111121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121111011139 - 2⁵ = 121111011107 is a prime.

It is a super-2 number, since 2×121111011139² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121111011169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555505569 + 60555505570.

It is an arithmetic number, because the mean of its divisors is an integer number (60555505570).

Almost surely, 2^121111011139 is an apocalyptic number.

121111011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111011139 is an equidigital number, since it uses as much as digits as its factorization.

121111011139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 22.

The spelling of 121111011139 in words is "one hundred twenty-one billion, one hundred eleven million, eleven thousand, one hundred thirty-nine".