128683229231 has 2 divisors, whose sum is σ = 128683229232. Its totient is φ = 128683229230.

The previous prime is 128683229183. The next prime is 128683229239. The reversal of 128683229231 is 132922386821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128683229231 - 2¹⁰ = 128683228207 is a prime.

It is a super-2 number, since 2×128683229231² (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 (128683229239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64341614615 + 64341614616.

It is an arithmetic number, because the mean of its divisors is an integer number (64341614616).

Almost surely, 2^128683229231 is an apocalyptic number.

128683229231 is a deficient number, since it is larger than the sum of its proper divisors (1).

128683229231 is an equidigital number, since it uses as much as digits as its factorization.

128683229231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The spelling of 128683229231 in words is "one hundred twenty-eight billion, six hundred eighty-three million, two hundred twenty-nine thousand, two hundred thirty-one".