40142134431 has 24 divisors (see below), whose sum is σ = 66271988640. Its totient is φ = 22936421376.

The previous prime is 40142134379. The next prime is 40142134433. The reversal of 40142134431 is 13443124104.

40142134431 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 213 + 443 + 1 = 666.

40142134431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40142134431 - 2⁶ = 40142134367 is a prime.

It is a super-2 number, since 2×40142134431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40142134395 and 40142134404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142134433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1083591 + ... + 1120023.

It is an arithmetic number, because the mean of its divisors is an integer number (2761332860).

Almost surely, 2^40142134431 is an apocalyptic number.

40142134431 is a deficient number, since it is larger than the sum of its proper divisors (26129854209).

40142134431 is a wasteful number, since it uses less digits than its factorization.

40142134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53935 (or 53932 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40142134431 its reverse (13443124104), we get a palindrome (53585258535).

The spelling of 40142134431 in words is "forty billion, one hundred forty-two million, one hundred thirty-four thousand, four hundred thirty-one".