1263751323 has 8 divisors (see below), whose sum is σ = 1726099536. Its totient is φ = 821952000.

The previous prime is 1263751303. The next prime is 1263751327. The reversal of 1263751323 is 3231573621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1263751323 - 2³⁰ = 190009499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1263751327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5137078 + ... + 5137323.

It is an arithmetic number, because the mean of its divisors is an integer number (215762442).

Almost surely, 2^1263751323 is an apocalyptic number.

1263751323 is a deficient number, since it is larger than the sum of its proper divisors (462348213).

1263751323 is a wasteful number, since it uses less digits than its factorization.

1263751323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274445.

The product of its digits is 22680, while the sum is 33.

The square root of 1263751323 is about 35549.2802036834. The cubic root of 1263751323 is about 1081.1531245003.

The spelling of 1263751323 in words is "one billion, two hundred sixty-three million, seven hundred fifty-one thousand, three hundred twenty-three".