123132020269 has 2 divisors, whose sum is σ = 123132020270. Its totient is φ = 123132020268.

The previous prime is 123132020239. The next prime is 123132020281. The reversal of 123132020269 is 962020231321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64561728100 + 58570292169 = 254090^2 + 242013^2 .

It is a cyclic number.

It is not a de Polignac number, because 123132020269 - 2¹¹ = 123132018221 is a prime.

It is a super-2 number, since 2×123132020269² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123132020269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123132020239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566010134 + 61566010135.

It is an arithmetic number, because the mean of its divisors is an integer number (61566010135).

Almost surely, 2^123132020269 is an apocalyptic number.

It is an amenable number.

123132020269 is a deficient number, since it is larger than the sum of its proper divisors (1).

123132020269 is an equidigital number, since it uses as much as digits as its factorization.

123132020269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 123132020269 in words is "one hundred twenty-three billion, one hundred thirty-two million, twenty thousand, two hundred sixty-nine".