12920325269 has 2 divisors, whose sum is σ = 12920325270. Its totient is φ = 12920325268.

The previous prime is 12920325263. The next prime is 12920325277. The reversal of 12920325269 is 96252302921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9089334244 + 3830991025 = 95338^2 + 61895^2 .

It is a cyclic number.

It is not a de Polignac number, because 12920325269 - 2⁸ = 12920325013 is a prime.

It is a super-2 number, since 2×12920325269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12920325263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6460162634 + 6460162635.

It is an arithmetic number, because the mean of its divisors is an integer number (6460162635).

Almost surely, 2^12920325269 is an apocalyptic number.

It is an amenable number.

12920325269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12920325269 is an equidigital number, since it uses as much as digits as its factorization.

12920325269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 12920325269 in words is "twelve billion, nine hundred twenty million, three hundred twenty-five thousand, two hundred sixty-nine".