1311332210020 has 24 divisors (see below), whose sum is σ = 3147197304384. Its totient is φ = 449599614816.

The previous prime is 1311332210017. The next prime is 1311332210053. The reversal of 1311332210020 is 200122331131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311332210020.

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, 4683329182 + ... + 4683329461.

It is an arithmetic number, because the mean of its divisors is an integer number (131133221016).

Almost surely, 2^{1311332210020} is an apocalyptic number.

1311332210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311332210020 is an abundant number, since it is smaller than the sum of its proper divisors (1835865094364).

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

1311332210020 is a wasteful number, since it uses less digits than its factorization.

1311332210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9366658659 (or 9366658657 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1311332210020 its reverse (200122331131), we get a palindrome (1511454541151).

The spelling of 1311332210020 in words is "one trillion, three hundred eleven billion, three hundred thirty-two million, two hundred ten thousand, twenty".