40132323221 has 4 divisors (see below), whose sum is σ = 40154485344. Its totient is φ = 40110161100.

The previous prime is 40132323211. The next prime is 40132323223. The reversal of 40132323221 is 12232323104.

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-40132323221 is a prime.

It is a super-2 number, since 2×40132323221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40132323223) 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, 11078345 + ... + 11081966.

It is an arithmetic number, because the mean of its divisors is an integer number (10038621336).

Almost surely, 2^40132323221 is an apocalyptic number.

It is an amenable number.

40132323221 is a deficient number, since it is larger than the sum of its proper divisors (22162123).

40132323221 is a wasteful number, since it uses less digits than its factorization.

40132323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22162122.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40132323221 its reverse (12232323104), we get a palindrome (52364646325).

The spelling of 40132323221 in words is "forty billion, one hundred thirty-two million, three hundred twenty-three thousand, two hundred twenty-one".