2111428139 has 2 divisors, whose sum is σ = 2111428140. Its totient is φ = 2111428138.

The previous prime is 2111428117. The next prime is 2111428153. The reversal of 2111428139 is 9318241112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111428139 - 2²⁰ = 2110379563 is a prime.

It is a super-2 number, since 2×2111428139² = 8916257572322006642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2111428639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055714069 + 1055714070.

It is an arithmetic number, because the mean of its divisors is an integer number (1055714070).

Almost surely, 2^2111428139 is an apocalyptic number.

2111428139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111428139 is an equidigital number, since it uses as much as digits as its factorization.

2111428139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 32.

The square root of 2111428139 is about 45950.2789871835. The cubic root of 2111428139 is about 1282.8979220635.

The spelling of 2111428139 in words is "two billion, one hundred eleven million, four hundred twenty-eight thousand, one hundred thirty-nine".