40431243211 has 8 divisors (see below), whose sum is σ = 43709452880. Its totient is φ = 37268058528.

The previous prime is 40431243187. The next prime is 40431243221. The reversal of 40431243211 is 11234213404.

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

It is a cyclic number.

It is not a de Polignac number, because 40431243211 - 2³⁵ = 6071504843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40431243221) 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, 28755516 + ... + 28756921.

It is an arithmetic number, because the mean of its divisors is an integer number (5463681610).

Almost surely, 2^40431243211 is an apocalyptic number.

40431243211 is a deficient number, since it is larger than the sum of its proper divisors (3278209669).

40431243211 is a wasteful number, since it uses less digits than its factorization.

40431243211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512493.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40431243211 its reverse (11234213404), we get a palindrome (51665456615).

The spelling of 40431243211 in words is "forty billion, four hundred thirty-one million, two hundred forty-three thousand, two hundred eleven".