123523331 has 2 divisors, whose sum is σ = 123523332. Its totient is φ = 123523330.

The previous prime is 123523289. The next prime is 123523333. The reversal of 123523331 is 133325321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123523331 is a prime.

It is a super-2 number, since 2×123523331² = 30516026602671122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 123523333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 123523297 and 123523306.

It is not a weakly prime, because it can be changed into another prime (123523333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61761665 + 61761666.

It is an arithmetic number, because the mean of its divisors is an integer number (61761666).

Almost surely, 2^123523331 is an apocalyptic number.

123523331 is a deficient number, since it is larger than the sum of its proper divisors (1).

123523331 is an equidigital number, since it uses as much as digits as its factorization.

123523331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 23.

The square root of 123523331 is about 11114.1050471912. The cubic root of 123523331 is about 498.0233036411.

Adding to 123523331 its reverse (133325321), we get a palindrome (256848652).

The spelling of 123523331 in words is "one hundred twenty-three million, five hundred twenty-three thousand, three hundred thirty-one".