40111324423021 has 4 divisors (see below), whose sum is σ = 40113631943392. Its totient is φ = 40109016902652.

The previous prime is 40111324423003. The next prime is 40111324423033. The reversal of 40111324423021 is 12032442311104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40111324423021 - 2¹³ = 40111324414829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40111324423061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153734111 + ... + 1153768876.

It is an arithmetic number, because the mean of its divisors is an integer number (10028407985848).

Almost surely, 2^{40111324423021} is an apocalyptic number.

It is an amenable number.

40111324423021 is a deficient number, since it is larger than the sum of its proper divisors (2307520371).

40111324423021 is a wasteful number, since it uses less digits than its factorization.

40111324423021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307520370.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 40111324423021 its reverse (12032442311104), we get a palindrome (52143766734125).

The spelling of 40111324423021 in words is "forty trillion, one hundred eleven billion, three hundred twenty-four million, four hundred twenty-three thousand, twenty-one".