400142012143 has 2 divisors, whose sum is σ = 400142012144. Its totient is φ = 400142012142.

The previous prime is 400142012141. The next prime is 400142012159. The reversal of 400142012143 is 341210241004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400142012143 - 2¹ = 400142012141 is a prime.

It is a super-2 number, since 2×400142012143² (a number of 24 digits) contains 22 as substring.

Together with 400142012141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400142012141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200071006071 + 200071006072.

It is an arithmetic number, because the mean of its divisors is an integer number (200071006072).

Almost surely, 2^400142012143 is an apocalyptic number.

400142012143 is a deficient number, since it is larger than the sum of its proper divisors (1).

400142012143 is an equidigital number, since it uses as much as digits as its factorization.

400142012143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 400142012143 its reverse (341210241004), we get a palindrome (741352253147).

The spelling of 400142012143 in words is "four hundred billion, one hundred forty-two million, twelve thousand, one hundred forty-three".