40421221040983 has 2 divisors, whose sum is σ = 40421221040984. Its totient is φ = 40421221040982.

The previous prime is 40421221040939. The next prime is 40421221041079. The reversal of 40421221040983 is 38904012212404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40421221040983 - 2³³ = 40412631106391 is a prime.

It is a super-2 number, since 2×40421221040983² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40421221040183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210610520491 + 20210610520492.

It is an arithmetic number, because the mean of its divisors is an integer number (20210610520492).

Almost surely, 2^{40421221040983} is an apocalyptic number.

40421221040983 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421221040983 is an equidigital number, since it uses as much as digits as its factorization.

40421221040983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 40421221040983 in words is "forty trillion, four hundred twenty-one billion, two hundred twenty-one million, forty thousand, nine hundred eighty-three".