1303211301320 has 16 divisors (see below), whose sum is σ = 2932225428060. Its totient is φ = 521284520512.

The previous prime is 1303211301307. The next prime is 1303211301323. The reversal of 1303211301320 is 231031123031.

It can be written as a sum of positive squares in 2 ways, for example, as 1301301436516 + 1909864804 = 1140746^2 + 43702^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1303211301292 and 1303211301301.

It is not an unprimeable number, because it can be changed into a prime (1303211301323) 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, 16290141227 + ... + 16290141306.

Almost surely, 2^{1303211301320} is an apocalyptic number.

1303211301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303211301320 is an abundant number, since it is smaller than the sum of its proper divisors (1629014126740).

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

1303211301320 is a wasteful number, since it uses less digits than its factorization.

1303211301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32580282544 (or 32580282540 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1303211301320 its reverse (231031123031), we get a palindrome (1534242424351).

The spelling of 1303211301320 in words is "one trillion, three hundred three billion, two hundred eleven million, three hundred one thousand, three hundred twenty".