1230020339 has 2 divisors, whose sum is σ = 1230020340. Its totient is φ = 1230020338.

The previous prime is 1230020321. The next prime is 1230020359. The reversal of 1230020339 is 9330200321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230020339 - 2²⁰ = 1228971763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230020359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615010169 + 615010170.

It is an arithmetic number, because the mean of its divisors is an integer number (615010170).

Almost surely, 2^1230020339 is an apocalyptic number.

1230020339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230020339 is an equidigital number, since it uses as much as digits as its factorization.

1230020339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1230020339 is about 35071.6457982798. The cubic root of 1230020339 is about 1071.4471753612.

The spelling of 1230020339 in words is "one billion, two hundred thirty million, twenty thousand, three hundred thirty-nine".