1331444320422 has 16 divisors (see below), whose sum is σ = 2754712387440. Its totient is φ = 428510815712.

The previous prime is 1331444320417. The next prime is 1331444320463. The reversal of 1331444320422 is 2240234441331.

It is a congruent number.

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, 3825989253 + ... + 3825989600.

It is an arithmetic number, because the mean of its divisors is an integer number (172169524215).

Almost surely, 2^{1331444320422} is an apocalyptic number.

1331444320422 is an abundant number, since it is smaller than the sum of its proper divisors (1423268067018).

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

1331444320422 is a wasteful number, since it uses less digits than its factorization.

1331444320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651978887.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1331444320422 its reverse (2240234441331), we get a palindrome (3571678761753).

The spelling of 1331444320422 in words is "one trillion, three hundred thirty-one billion, four hundred forty-four million, three hundred twenty thousand, four hundred twenty-two".