123102012019201 has 2 divisors, whose sum is σ = 123102012019202. Its totient is φ = 123102012019200.

The previous prime is 123102012019193. The next prime is 123102012019219. The reversal of 123102012019201 is 102910210201321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87777711288576 + 35324300730625 = 9368976^2 + 5943425^2 .

It is a cyclic number.

It is not a de Polignac number, because 123102012019201 - 2³ = 123102012019193 is a prime.

It is not a weakly prime, because it can be changed into another prime (123102012019291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551006009600 + 61551006009601.

It is an arithmetic number, because the mean of its divisors is an integer number (61551006009601).

Almost surely, 2^{123102012019201} is an apocalyptic number.

It is an amenable number.

123102012019201 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102012019201 is an equidigital number, since it uses as much as digits as its factorization.

123102012019201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 123102012019201 in words is "one hundred twenty-three trillion, one hundred two billion, twelve million, nineteen thousand, two hundred one".