40311421133 has 4 divisors (see below), whose sum is σ = 40316628348. Its totient is φ = 40306213920.

The previous prime is 40311421123. The next prime is 40311421141. The reversal of 40311421133 is 33112411304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28839511684 + 11471909449 = 169822^2 + 107107^2 .

It is a cyclic number.

It is not a de Polignac number, because 40311421133 - 2¹² = 40311417037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40311421099 and 40311421108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40311421123) 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, 2591978 + ... + 2607483.

It is an arithmetic number, because the mean of its divisors is an integer number (10079157087).

Almost surely, 2^40311421133 is an apocalyptic number.

It is an amenable number.

40311421133 is a deficient number, since it is larger than the sum of its proper divisors (5207215).

40311421133 is an equidigital number, since it uses as much as digits as its factorization.

40311421133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207214.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 40311421133 its reverse (33112411304), we get a palindrome (73423832437).

The spelling of 40311421133 in words is "forty billion, three hundred eleven million, four hundred twenty-one thousand, one hundred thirty-three".