402143434323 has 4 divisors (see below), whose sum is σ = 536191245768. Its totient is φ = 268095622880.

The previous prime is 402143434307. The next prime is 402143434331. The reversal of 402143434323 is 323434341204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402143434323 - 2⁴ = 402143434307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402143434373) 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, 67023905718 + ... + 67023905723.

It is an arithmetic number, because the mean of its divisors is an integer number (134047811442).

Almost surely, 2^402143434323 is an apocalyptic number.

402143434323 is a deficient number, since it is larger than the sum of its proper divisors (134047811445).

402143434323 is a wasteful number, since it uses less digits than its factorization.

402143434323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134047811444.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 402143434323 its reverse (323434341204), we get a palindrome (725577775527).

The spelling of 402143434323 in words is "four hundred two billion, one hundred forty-three million, four hundred thirty-four thousand, three hundred twenty-three".