1233752321 has 2 divisors, whose sum is σ = 1233752322. Its totient is φ = 1233752320.

The previous prime is 1233752287. The next prime is 1233752323. The reversal of 1233752321 is 1232573321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134948721 + 98803600 = 33689^2 + 9940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233752321 - 2¹⁰ = 1233751297 is a prime.

Together with 1233752323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1233752323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616876160 + 616876161.

It is an arithmetic number, because the mean of its divisors is an integer number (616876161).

Almost surely, 2^1233752321 is an apocalyptic number.

It is an amenable number.

1233752321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233752321 is an equidigital number, since it uses as much as digits as its factorization.

1233752321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 1233752321 is about 35124.8106187065. The cubic root of 1233752321 is about 1072.5297006389.

The spelling of 1233752321 in words is "one billion, two hundred thirty-three million, seven hundred fifty-two thousand, three hundred twenty-one".