40000133231 has 8 divisors (see below), whose sum is σ = 41438498400. Its totient is φ = 38565704800.

The previous prime is 40000133213. The next prime is 40000133237. The reversal of 40000133231 is 13233100004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40000133231 is a prime.

It is a super-2 number, since 2×40000133231² (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 (40000133237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963491 + ... + 1004148.

It is an arithmetic number, because the mean of its divisors is an integer number (5179812300).

Almost surely, 2^40000133231 is an apocalyptic number.

40000133231 is a deficient number, since it is larger than the sum of its proper divisors (1438365169).

40000133231 is a wasteful number, since it uses less digits than its factorization.

40000133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968369.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40000133231 its reverse (13233100004), we get a palindrome (53233233235).

The spelling of 40000133231 in words is "forty billion, one hundred thirty-three thousand, two hundred thirty-one".