231502121269 has 2 divisors, whose sum is σ = 231502121270. Its totient is φ = 231502121268.

The previous prime is 231502121267. The next prime is 231502121351. The reversal of 231502121269 is 962121205132.

231502121269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140456300625 + 91045820644 = 374775^2 + 301738^2 .

It is a cyclic number.

It is not a de Polignac number, because 231502121269 - 2¹ = 231502121267 is a prime.

It is a super-2 number, since 2×231502121269² (a number of 24 digits) contains 22 as substring.

Together with 231502121267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231502121267) 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, 115751060634 + 115751060635.

It is an arithmetic number, because the mean of its divisors is an integer number (115751060635).

Almost surely, 2^231502121269 is an apocalyptic number.

It is an amenable number.

231502121269 is a deficient number, since it is larger than the sum of its proper divisors (1).

231502121269 is an equidigital number, since it uses as much as digits as its factorization.

231502121269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 231502121269 in words is "two hundred thirty-one billion, five hundred two million, one hundred twenty-one thousand, two hundred sixty-nine".