40133421231 has 4 divisors (see below), whose sum is σ = 53511228312. Its totient is φ = 26755614152.

The previous prime is 40133421227. The next prime is 40133421241. The reversal of 40133421231 is 13212433104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40133421231 - 2² = 40133421227 is a prime.

It is a super-2 number, since 2×40133421231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40133421241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6688903536 + ... + 6688903541.

It is an arithmetic number, because the mean of its divisors is an integer number (13377807078).

Almost surely, 2^40133421231 is an apocalyptic number.

40133421231 is a deficient number, since it is larger than the sum of its proper divisors (13377807081).

40133421231 is a wasteful number, since it uses less digits than its factorization.

40133421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13377807080.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 40133421231 its reverse (13212433104), we get a palindrome (53345854335).

The spelling of 40133421231 in words is "forty billion, one hundred thirty-three million, four hundred twenty-one thousand, two hundred thirty-one".