40421041231020 has 192 divisors, whose sum is σ = 115038766080000. Its totient is φ = 10603257702400.

The previous prime is 40421041230989. The next prime is 40421041231033. The reversal of 40421041231020 is 2013214012404.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2427827656 + ... + 2427844304.

It is an arithmetic number, because the mean of its divisors is an integer number (599160240000).

Almost surely, 2^{40421041231020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40421041231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57519383040000).

40421041231020 is an abundant number, since it is smaller than the sum of its proper divisors (74617724848980).

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

40421041231020 is a wasteful number, since it uses less digits than its factorization.

40421041231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19328 (or 19326 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40421041231020 its reverse (2013214012404), we get a palindrome (42434255243424).

The spelling of 40421041231020 in words is "forty trillion, four hundred twenty-one billion, forty-one million, two hundred thirty-one thousand, twenty".