1232323121 has 2 divisors, whose sum is σ = 1232323122. Its totient is φ = 1232323120.

The previous prime is 1232323117. The next prime is 1232323123. The reversal of 1232323121 is 1213232321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1229554225 + 2768896 = 35065^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232323121 - 2² = 1232323117 is a prime.

Together with 1232323123, 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 = 1232323093 and 1232323102.

It is not a weakly prime, because it can be changed into another prime (1232323123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616161560 + 616161561.

It is an arithmetic number, because the mean of its divisors is an integer number (616161561).

Almost surely, 2^1232323121 is an apocalyptic number.

It is an amenable number.

1232323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232323121 is an equidigital number, since it uses as much as digits as its factorization.

1232323121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 1232323121 is about 35104.4601297328. The cubic root of 1232323121 is about 1072.1153949742.

Adding to 1232323121 its reverse (1213232321), we get a palindrome (2445555442).

The spelling of 1232323121 in words is "one billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred twenty-one".