40010034321021 has 16 divisors (see below), whose sum is σ = 53783275014144. Its totient is φ = 26455203903744.

The previous prime is 40010034321011. The next prime is 40010034321077. The reversal of 40010034321021 is 12012343001004.

It is not a de Polignac number, because 40010034321021 - 2¹⁴ = 40010034304637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010034321011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14880240 + ... + 17362073.

It is an arithmetic number, because the mean of its divisors is an integer number (3361454688384).

Almost surely, 2^{40010034321021} is an apocalyptic number.

It is an amenable number.

40010034321021 is a deficient number, since it is larger than the sum of its proper divisors (13773240693123).

40010034321021 is a wasteful number, since it uses less digits than its factorization.

40010034321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32245700.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40010034321021 its reverse (12012343001004), we get a palindrome (52022377322025).

The spelling of 40010034321021 in words is "forty trillion, ten billion, thirty-four million, three hundred twenty-one thousand, twenty-one".