1021054413040 has 80 divisors (see below), whose sum is σ = 2394091937952. Its totient is φ = 404963766272.

The previous prime is 1021054413017. The next prime is 1021054413053. The reversal of 1021054413040 is 403144501201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1021054413040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021054412996 and 1021054413014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9338367 + ... + 9447073.

Almost surely, 2^{1021054413040} is an apocalyptic number.

1021054413040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021054413040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197045968976).

1021054413040 is an abundant number, since it is smaller than the sum of its proper divisors (1373037524912).

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

1021054413040 is a wasteful number, since it uses less digits than its factorization.

1021054413040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109714 (or 109708 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1021054413040 its reverse (403144501201), we get a palindrome (1424198914241).

The spelling of 1021054413040 in words is "one trillion, twenty-one billion, fifty-four million, four hundred thirteen thousand, forty".