20430120131269 has 2 divisors, whose sum is σ = 20430120131270. Its totient is φ = 20430120131268.

The previous prime is 20430120131219. The next prime is 20430120131287. The reversal of 20430120131269 is 96213102103402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15302101004100 + 5128019127169 = 3911790^2 + 2264513^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430120131269 - 2²³ = 20430111742661 is a prime.

It is a super-2 number, since 2×20430120131269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20430120131219) 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, 10215060065634 + 10215060065635.

It is an arithmetic number, because the mean of its divisors is an integer number (10215060065635).

Almost surely, 2^{20430120131269} is an apocalyptic number.

It is an amenable number.

20430120131269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20430120131269 is an equidigital number, since it uses as much as digits as its factorization.

20430120131269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 20430120131269 in words is "twenty trillion, four hundred thirty billion, one hundred twenty million, one hundred thirty-one thousand, two hundred sixty-nine".