1263325316 has 24 divisors (see below), whose sum is σ = 2417118816. Its totient is φ = 572973120.

The previous prime is 1263325313. The next prime is 1263325339. The reversal of 1263325316 is 6135233621.

It is not an unprimeable number, because it can be changed into a prime (1263325313) 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, 11306 + ... + 51521.

It is an arithmetic number, because the mean of its divisors is an integer number (100713284).

Almost surely, 2^1263325316 is an apocalyptic number.

It is an amenable number.

1263325316 is a deficient number, since it is larger than the sum of its proper divisors (1153793500).

1263325316 is a wasteful number, since it uses less digits than its factorization.

1263325316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63299 (or 63297 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 1263325316 is about 35543.2879176927. The cubic root of 1263325316 is about 1081.0316262926.

Adding to 1263325316 its reverse (6135233621), we get a palindrome (7398558937).

The spelling of 1263325316 in words is "one billion, two hundred sixty-three million, three hundred twenty-five thousand, three hundred sixteen".