231001023133033 has 2 divisors, whose sum is σ = 231001023133034. Its totient is φ = 231001023133032.

The previous prime is 231001023132991. The next prime is 231001023133043. The reversal of 231001023133033 is 330331320100132.

231001023133033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230908295574889 + 92727558144 = 15195667^2 + 304512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231001023133033 is a prime.

It is a super-2 number, since 2×231001023133033² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231001023132989 and 231001023133007.

It is not a weakly prime, because it can be changed into another prime (231001023133043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115500511566516 + 115500511566517.

It is an arithmetic number, because the mean of its divisors is an integer number (115500511566517).

Almost surely, 2^{231001023133033} is an apocalyptic number.

It is an amenable number.

231001023133033 is a deficient number, since it is larger than the sum of its proper divisors (1).

231001023133033 is an equidigital number, since it uses as much as digits as its factorization.

231001023133033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 231001023133033 its reverse (330331320100132), we get a palindrome (561332343233165).

The spelling of 231001023133033 in words is "two hundred thirty-one trillion, one billion, twenty-three million, one hundred thirty-three thousand, thirty-three".