123102202020019 has 2 divisors, whose sum is σ = 123102202020020. Its totient is φ = 123102202020018.

The previous prime is 123102202019969. The next prime is 123102202020041. The reversal of 123102202020019 is 910020202201321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123102202020019 - 2¹⁹ = 123102201495731 is a prime.

It is a super-2 number, since 2×123102202020019² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123102202019975 and 123102202020002.

It is not a weakly prime, because it can be changed into another prime (123102202020619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551101010009 + 61551101010010.

It is an arithmetic number, because the mean of its divisors is an integer number (61551101010010).

Almost surely, 2^{123102202020019} is an apocalyptic number.

123102202020019 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102202020019 is an equidigital number, since it uses as much as digits as its factorization.

123102202020019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 123102202020019 in words is "one hundred twenty-three trillion, one hundred two billion, two hundred two million, twenty thousand, nineteen".