123020013019 has 2 divisors, whose sum is σ = 123020013020. Its totient is φ = 123020013018.

The previous prime is 123020012981. The next prime is 123020013049. The reversal of 123020013019 is 910310020321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123020013019 - 2²⁵ = 122986458587 is a prime.

It is a super-2 number, since 2×123020013019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123020013049) 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, 61510006509 + 61510006510.

It is an arithmetic number, because the mean of its divisors is an integer number (61510006510).

Almost surely, 2^123020013019 is an apocalyptic number.

123020013019 is a deficient number, since it is larger than the sum of its proper divisors (1).

123020013019 is an equidigital number, since it uses as much as digits as its factorization.

123020013019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 123020013019 in words is "one hundred twenty-three billion, twenty million, thirteen thousand, nineteen".