1303231121320 has 64 divisors (see below), whose sum is σ = 3000097440000. Its totient is φ = 509316557568.

The previous prime is 1303231121287. The next prime is 1303231121377. The reversal of 1303231121320 is 231211323031.

It is a super-2 number, since 2×1303231121320² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1303231121291 and 1303231121300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779370 + ... + 1792729.

It is an arithmetic number, because the mean of its divisors is an integer number (46876522500).

Almost surely, 2^{1303231121320} is an apocalyptic number.

1303231121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303231121320 is an abundant number, since it is smaller than the sum of its proper divisors (1696866318680).

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

1303231121320 is a wasteful number, since it uses less digits than its factorization.

1303231121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572402 (or 2572398 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1303231121320 its reverse (231211323031), we get a palindrome (1534442444351).

The spelling of 1303231121320 in words is "one trillion, three hundred three billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty".