1303311311020 has 24 divisors (see below), whose sum is σ = 2737010291904. Its totient is φ = 521313755136.

The previous prime is 1303311310981. The next prime is 1303311311047. The reversal of 1303311311020 is 201131133031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357804 + ... + 1653676.

It is an arithmetic number, because the mean of its divisors is an integer number (114042095496).

Almost surely, 2^{1303311311020} is an apocalyptic number.

1303311311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303311311020 is an abundant number, since it is smaller than the sum of its proper divisors (1433698980884).

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

1303311311020 is a wasteful number, since it uses less digits than its factorization.

1303311311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346169 (or 1346167 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1303311311020 its reverse (201131133031), we get a palindrome (1504442444051).

The spelling of 1303311311020 in words is "one trillion, three hundred three billion, three hundred eleven million, three hundred eleven thousand, twenty".