1331323310020 has 48 divisors (see below), whose sum is σ = 3050057203200. Its totient is φ = 484099070720.

The previous prime is 1331323310003. The next prime is 1331323310087. The reversal of 1331323310020 is 200133231331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1331323309973 and 1331323310000.

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, 6519021 + ... + 6720139.

It is an arithmetic number, because the mean of its divisors is an integer number (63542858400).

Almost surely, 2^{1331323310020} is an apocalyptic number.

1331323310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331323310020 is an abundant number, since it is smaller than the sum of its proper divisors (1718733893180).

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

1331323310020 is a wasteful number, since it uses less digits than its factorization.

1331323310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231228 (or 231226 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1331323310020 its reverse (200133231331), we get a palindrome (1531456541351).

The spelling of 1331323310020 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred ten thousand, twenty".