30231321139 has 2 divisors, whose sum is σ = 30231321140. Its totient is φ = 30231321138.

The previous prime is 30231321103. The next prime is 30231321149. The reversal of 30231321139 is 93112313203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231321139 is a prime.

It is not a weakly prime, because it can be changed into another prime (30231321149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115660569 + 15115660570.

It is an arithmetic number, because the mean of its divisors is an integer number (15115660570).

Almost surely, 2^30231321139 is an apocalyptic number.

30231321139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231321139 is an equidigital number, since it uses as much as digits as its factorization.

30231321139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 30231321139 in words is "thirty billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty-nine".