230120030509 has 2 divisors, whose sum is σ = 230120030510. Its totient is φ = 230120030508.

The previous prime is 230120030423. The next prime is 230120030513. The reversal of 230120030509 is 905030021032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141679218409 + 88440812100 = 376403^2 + 297390^2 .

It is a cyclic number.

It is not a de Polignac number, because 230120030509 - 2²³ = 230111641901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230120030519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115060015254 + 115060015255.

It is an arithmetic number, because the mean of its divisors is an integer number (115060015255).

Almost surely, 2^230120030509 is an apocalyptic number.

It is an amenable number.

230120030509 is a deficient number, since it is larger than the sum of its proper divisors (1).

230120030509 is an equidigital number, since it uses as much as digits as its factorization.

230120030509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The spelling of 230120030509 in words is "two hundred thirty billion, one hundred twenty million, thirty thousand, five hundred nine".