1320311023 has 8 divisors (see below), whose sum is σ = 1346208480. Its totient is φ = 1294550880.

The previous prime is 1320311017. The next prime is 1320311039. The reversal of 1320311023 is 3201130231.

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 1320311023 - 2²⁹ = 783440111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320310988 and 1320311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320311093) 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, 14803 + ... + 53476.

It is an arithmetic number, because the mean of its divisors is an integer number (168276060).

Almost surely, 2^1320311023 is an apocalyptic number.

1320311023 is a deficient number, since it is larger than the sum of its proper divisors (25897457).

1320311023 is an equidigital number, since it uses as much as digits as its factorization.

1320311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68657.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320311023 is about 36336.0843102280. The cubic root of 1320311023 is about 1097.0474603361.

Adding to 1320311023 its reverse (3201130231), we get a palindrome (4521441254).

The spelling of 1320311023 in words is "one billion, three hundred twenty million, three hundred eleven thousand, twenty-three".