30020255123 has 2 divisors, whose sum is σ = 30020255124. Its totient is φ = 30020255122.

The previous prime is 30020255117. The next prime is 30020255147. The reversal of 30020255123 is 32155202003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30020255123 - 2²⁸ = 29751819667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30020255423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010127561 + 15010127562.

It is an arithmetic number, because the mean of its divisors is an integer number (15010127562).

Almost surely, 2^30020255123 is an apocalyptic number.

30020255123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020255123 is an equidigital number, since it uses as much as digits as its factorization.

30020255123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 30020255123 its reverse (32155202003), we get a palindrome (62175457126).

The spelling of 30020255123 in words is "thirty billion, twenty million, two hundred fifty-five thousand, one hundred twenty-three".