131022120269 has 2 divisors, whose sum is σ = 131022120270. Its totient is φ = 131022120268.

The previous prime is 131022120247. The next prime is 131022120287. The reversal of 131022120269 is 962021220131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130583217769 + 438902500 = 361363^2 + 20950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131022120269 is a prime.

It is a super-2 number, since 2×131022120269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131022120209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65511060134 + 65511060135.

It is an arithmetic number, because the mean of its divisors is an integer number (65511060135).

Almost surely, 2^131022120269 is an apocalyptic number.

It is an amenable number.

131022120269 is a deficient number, since it is larger than the sum of its proper divisors (1).

131022120269 is an equidigital number, since it uses as much as digits as its factorization.

131022120269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 131022120269 in words is "one hundred thirty-one billion, twenty-two million, one hundred twenty thousand, two hundred sixty-nine".