1331433420424 has 128 divisors (see below), whose sum is σ = 2692627660800. Its totient is φ = 615944448000.

The previous prime is 1331433420403. The next prime is 1331433420599. The reversal of 1331433420424 is 4240243341331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331433420424.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630711129 + ... + 630713239.

It is an arithmetic number, because the mean of its divisors is an integer number (21036153600).

Almost surely, 2^{1331433420424} is an apocalyptic number.

It is an amenable number.

1331433420424 is an abundant number, since it is smaller than the sum of its proper divisors (1361194240376).

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

1331433420424 is a wasteful number, since it uses less digits than its factorization.

1331433420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 1331433420424 its reverse (4240243341331), we get a palindrome (5571676761755).

The spelling of 1331433420424 in words is "one trillion, three hundred thirty-one billion, four hundred thirty-three million, four hundred twenty thousand, four hundred twenty-four".