1020401121344 has 84 divisors (see below), whose sum is σ = 2331315853488. Its totient is φ = 439407072000.

The previous prime is 1020401121329. The next prime is 1020401121353. The reversal of 1020401121344 is 4431211040201.

It is a super-2 number, since 2×1020401121344² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1753382 + ... + 2261669.

Almost surely, 2^{1020401121344} is an apocalyptic number.

It is an amenable number.

1020401121344 is an abundant number, since it is smaller than the sum of its proper divisors (1310914732144).

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

1020401121344 is a wasteful number, since it uses less digits than its factorization.

1020401121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015112 (or 4015083 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1020401121344 its reverse (4431211040201), we get a palindrome (5451612161545).

The spelling of 1020401121344 in words is "one trillion, twenty billion, four hundred one million, one hundred twenty-one thousand, three hundred forty-four".