431422144143 has 4 divisors (see below), whose sum is σ = 575229525528. Its totient is φ = 287614762760.

The previous prime is 431422144057. The next prime is 431422144151. The reversal of 431422144143 is 341441224134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431422144143 is a prime.

It is a super-2 number, since 2×431422144143² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431422143143) 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, 71903690688 + ... + 71903690693.

It is an arithmetic number, because the mean of its divisors is an integer number (143807381382).

Almost surely, 2^431422144143 is an apocalyptic number.

431422144143 is a deficient number, since it is larger than the sum of its proper divisors (143807381385).

431422144143 is a wasteful number, since it uses less digits than its factorization.

431422144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143807381384.

The product of its digits is 36864, while the sum is 33.

Adding to 431422144143 its reverse (341441224134), we get a palindrome (772863368277).

The spelling of 431422144143 in words is "four hundred thirty-one billion, four hundred twenty-two million, one hundred forty-four thousand, one hundred forty-three".