1303311023 has 8 divisors (see below), whose sum is σ = 1567893120. Its totient is φ = 1058327640.

The previous prime is 1303311007. The next prime is 1303311043. The reversal of 1303311023 is 3201133031.

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

It is a cyclic number.

It is not a de Polignac number, because 1303311023 - 2⁴ = 1303311007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303310992 and 1303311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303311043) 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, 4899533 + ... + 4899798.

It is an arithmetic number, because the mean of its divisors is an integer number (195986640).

Almost surely, 2^1303311023 is an apocalyptic number.

1303311023 is a deficient number, since it is larger than the sum of its proper divisors (264582097).

1303311023 is an equidigital number, since it uses as much as digits as its factorization.

1303311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799357.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1303311023 is about 36101.3991834112. The cubic root of 1303311023 is about 1092.3186685415.

Adding to 1303311023 its reverse (3201133031), we get a palindrome (4504444054).

The spelling of 1303311023 in words is "one billion, three hundred three million, three hundred eleven thousand, twenty-three".