40142143134431 has 8 divisors (see below), whose sum is σ = 43875224184624. Its totient is φ = 36501236925120.

The previous prime is 40142143134383. The next prime is 40142143134437. The reversal of 40142143134431 is 13443134124104.

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-40142143134431 is a prime.

It is a super-2 number, since 2×40142143134431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40142143134391 and 40142143134400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142143134437) 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, 23043709310 + ... + 23043711051.

It is an arithmetic number, because the mean of its divisors is an integer number (5484403023078).

Almost surely, 2^{40142143134431} is an apocalyptic number.

40142143134431 is a deficient number, since it is larger than the sum of its proper divisors (3733081050193).

40142143134431 is a wasteful number, since it uses less digits than its factorization.

40142143134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46087420441.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 40142143134431 its reverse (13443134124104), we get a palindrome (53585277258535).

The spelling of 40142143134431 in words is "forty trillion, one hundred forty-two billion, one hundred forty-three million, one hundred thirty-four thousand, four hundred thirty-one".