1303231001320 has 32 divisors (see below), whose sum is σ = 3026859102720. Its totient is φ = 504476516160.

The previous prime is 1303231001309. The next prime is 1303231001321. The reversal of 1303231001320 is 231001323031.

It is a super-2 number, since 2×1303231001320² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303231001321) 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, 525495132 + ... + 525497611.

It is an arithmetic number, because the mean of its divisors is an integer number (94589346960).

Almost surely, 2^{1303231001320} is an apocalyptic number.

1303231001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303231001320 is an abundant number, since it is smaller than the sum of its proper divisors (1723628101400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303231001320 is a wasteful number, since it uses less digits than its factorization.

1303231001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050992785 (or 1050992781 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1303231001320 its reverse (231001323031), we get a palindrome (1534232324351).

The spelling of 1303231001320 in words is "one trillion, three hundred three billion, two hundred thirty-one million, one thousand, three hundred twenty".