1021318794048 has 56 divisors (see below), whose sum is σ = 3088273500352. Its totient is φ = 291805369344.

The previous prime is 1021318794007. The next prime is 1021318794059. The reversal of 1021318794048 is 8404978131201.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1021318794048² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1021318793988 and 1021318794006.

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, 379953565 + ... + 379956252.

Almost surely, 2^{1021318794048} is an apocalyptic number.

It is an amenable number.

1021318794048 is an abundant number, since it is smaller than the sum of its proper divisors (2066954706304).

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

1021318794048 is an equidigital number, since it uses as much as digits as its factorization.

1021318794048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759909839 (or 759909829 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 1021318794048 in words is "one trillion, twenty-one billion, three hundred eighteen million, seven hundred ninety-four thousand, forty-eight".