1331020013424 has 40 divisors (see below), whose sum is σ = 3439358950272. Its totient is φ = 443558424000.

The previous prime is 1331020013377. The next prime is 1331020013431. The reversal of 1331020013424 is 4243100201331.

It is a happy number.

It is a super-2 number, since 2×1331020013424² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1331020013394 and 1331020013403.

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, 3403702 + ... + 3774549.

Almost surely, 2^{1331020013424} is an apocalyptic number.

It is an amenable number.

1331020013424 is an abundant number, since it is smaller than the sum of its proper divisors (2108338936848).

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

1331020013424 is a wasteful number, since it uses less digits than its factorization.

1331020013424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182125 (or 7182119 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1331020013424 its reverse (4243100201331), we get a palindrome (5574120214755).

The spelling of 1331020013424 in words is "one trillion, three hundred thirty-one billion, twenty million, thirteen thousand, four hundred twenty-four".