1253323003 has 2 divisors, whose sum is σ = 1253323004. Its totient is φ = 1253323002.

The previous prime is 1253322997. The next prime is 1253323007. The reversal of 1253323003 is 3003233521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253323003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253323007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626661501 + 626661502.

It is an arithmetic number, because the mean of its divisors is an integer number (626661502).

Almost surely, 2^1253323003 is an apocalyptic number.

1253323003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253323003 is an equidigital number, since it uses as much as digits as its factorization.

1253323003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 1253323003 is about 35402.3022273976. The cubic root of 1253323003 is about 1078.1710594541.

Adding to 1253323003 its reverse (3003233521), we get a palindrome (4256556524).

The spelling of 1253323003 in words is "one billion, two hundred fifty-three million, three hundred twenty-three thousand, three".