1263531711283 has 4 divisors (see below), whose sum is σ = 1267281063880. Its totient is φ = 1259782358688.

The previous prime is 1263531711259. The next prime is 1263531711287. The reversal of 1263531711283 is 3821171353621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263531711283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1263531711287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874675793 + ... + 1874676466.

It is an arithmetic number, because the mean of its divisors is an integer number (316820265970).

Almost surely, 2^{1263531711283} is an apocalyptic number.

1263531711283 is a deficient number, since it is larger than the sum of its proper divisors (3749352597).

1263531711283 is an equidigital number, since it uses as much as digits as its factorization.

1263531711283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749352596.

The product of its digits is 181440, while the sum is 43.

The spelling of 1263531711283 in words is "one trillion, two hundred sixty-three billion, five hundred thirty-one million, seven hundred eleven thousand, two hundred eighty-three".