1233023257 has 2 divisors, whose sum is σ = 1233023258. Its totient is φ = 1233023256.

The previous prime is 1233023179. The next prime is 1233023263. The reversal of 1233023257 is 7523203321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104631696 + 128391561 = 33236^2 + 11331^2 .

It is an emirp because it is prime and its reverse (7523203321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233023257 - 2²⁷ = 1098805529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233024257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616511628 + 616511629.

It is an arithmetic number, because the mean of its divisors is an integer number (616511629).

Almost surely, 2^1233023257 is an apocalyptic number.

It is an amenable number.

1233023257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233023257 is an equidigital number, since it uses as much as digits as its factorization.

1233023257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 1233023257 is about 35114.4308938647. The cubic root of 1233023257 is about 1072.3183948914.

Adding to 1233023257 its reverse (7523203321), we get a palindrome (8756226578).

The spelling of 1233023257 in words is "one billion, two hundred thirty-three million, twenty-three thousand, two hundred fifty-seven".