40423321333 has 4 divisors (see below), whose sum is σ = 40497221920. Its totient is φ = 40349420748.

The previous prime is 40423321319. The next prime is 40423321387. The reversal of 40423321333 is 33312332404.

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 a de Polignac number, because none of the positive numbers 2^k-40423321333 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 (40423321303) 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, 36949473 + ... + 36950566.

It is an arithmetic number, because the mean of its divisors is an integer number (10124305480).

Almost surely, 2^40423321333 is an apocalyptic number.

It is an amenable number.

40423321333 is a deficient number, since it is larger than the sum of its proper divisors (73900587).

40423321333 is an equidigital number, since it uses as much as digits as its factorization.

40423321333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73900586.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 40423321333 its reverse (33312332404), we get a palindrome (73735653737).

The spelling of 40423321333 in words is "forty billion, four hundred twenty-three million, three hundred twenty-one thousand, three hundred thirty-three".