43402011143 has 4 divisors (see below), whose sum is σ = 45955070640. Its totient is φ = 40848951648.

The previous prime is 43402011127. The next prime is 43402011161. The reversal of 43402011143 is 34111020434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34111020434 = 2 ⋅17055510217.

It is a cyclic number.

It is not a de Polignac number, because 43402011143 - 2⁴ = 43402011127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43402011743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276529723 + ... + 1276529756.

It is an arithmetic number, because the mean of its divisors is an integer number (11488767660).

Almost surely, 2^43402011143 is an apocalyptic number.

43402011143 is a deficient number, since it is larger than the sum of its proper divisors (2553059497).

43402011143 is a wasteful number, since it uses less digits than its factorization.

43402011143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553059496.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 43402011143 its reverse (34111020434), we get a palindrome (77513031577).

The spelling of 43402011143 in words is "forty-three billion, four hundred two million, eleven thousand, one hundred forty-three".