231232102133 has 2 divisors, whose sum is σ = 231232102134. Its totient is φ = 231232102132.

The previous prime is 231232102063. The next prime is 231232102193. The reversal of 231232102133 is 331201232132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158724153604 + 72507948529 = 398402^2 + 269273^2 .

It is a cyclic number.

It is not a de Polignac number, because 231232102133 - 2³⁶ = 162512625397 is a prime.

It is a super-2 number, since 2×231232102133² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231232102099 and 231232102108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231232102193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115616051066 + 115616051067.

It is an arithmetic number, because the mean of its divisors is an integer number (115616051067).

Almost surely, 2^231232102133 is an apocalyptic number.

It is an amenable number.

231232102133 is a deficient number, since it is larger than the sum of its proper divisors (1).

231232102133 is an equidigital number, since it uses as much as digits as its factorization.

231232102133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231232102133 its reverse (331201232132), we get a palindrome (562433334265).

The spelling of 231232102133 in words is "two hundred thirty-one billion, two hundred thirty-two million, one hundred two thousand, one hundred thirty-three".