30842061139 has 2 divisors, whose sum is σ = 30842061140. Its totient is φ = 30842061138.

The previous prime is 30842061077. The next prime is 30842061193. The reversal of 30842061139 is 93116024803.

Together with next prime (30842061193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30842061139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30842061098 and 30842061107.

It is not a weakly prime, because it can be changed into another prime (30842061739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15421030569 + 15421030570.

It is an arithmetic number, because the mean of its divisors is an integer number (15421030570).

Almost surely, 2^30842061139 is an apocalyptic number.

30842061139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30842061139 is an equidigital number, since it uses as much as digits as its factorization.

30842061139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 30842061139 in words is "thirty billion, eight hundred forty-two million, sixty-one thousand, one hundred thirty-nine".