1231032012269 has 2 divisors, whose sum is σ = 1231032012270. Its totient is φ = 1231032012268.

The previous prime is 1231032012191. The next prime is 1231032012289. The reversal of 1231032012269 is 9622102301321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1178661978244 + 52370034025 = 1085662^2 + 228845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231032012269 - 2³⁶ = 1162312535533 is a prime.

It is a super-2 number, since 2×1231032012269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231032012289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615516006134 + 615516006135.

It is an arithmetic number, because the mean of its divisors is an integer number (615516006135).

Almost surely, 2^{1231032012269} is an apocalyptic number.

It is an amenable number.

1231032012269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231032012269 is an equidigital number, since it uses as much as digits as its factorization.

1231032012269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 1231032012269 in words is "one trillion, two hundred thirty-one billion, thirty-two million, twelve thousand, two hundred sixty-nine".