131121110269 has 2 divisors, whose sum is σ = 131121110270. Its totient is φ = 131121110268.

The previous prime is 131121110203. The next prime is 131121110287. The reversal of 131121110269 is 962011121131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108232446169 + 22888664100 = 328987^2 + 151290^2 .

It is a cyclic number.

It is not a de Polignac number, because 131121110269 - 2²¹ = 131119013117 is a prime.

It is a super-2 number, since 2×131121110269² (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 (131121110069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65560555134 + 65560555135.

It is an arithmetic number, because the mean of its divisors is an integer number (65560555135).

Almost surely, 2^131121110269 is an apocalyptic number.

It is an amenable number.

131121110269 is a deficient number, since it is larger than the sum of its proper divisors (1).

131121110269 is an equidigital number, since it uses as much as digits as its factorization.

131121110269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 131121110269 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred ten thousand, two hundred sixty-nine".