402431011443 has 24 divisors (see below), whose sum is σ = 595512730176. Its totient is φ = 261723657600.

The previous prime is 402431011421. The next prime is 402431011447. The reversal of 402431011443 is 344110134204.

It is not a de Polignac number, because 402431011443 - 2⁸ = 402431011187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402431011447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5922246 + ... + 5989812.

It is an arithmetic number, because the mean of its divisors is an integer number (24813030424).

Almost surely, 2^402431011443 is an apocalyptic number.

402431011443 is a deficient number, since it is larger than the sum of its proper divisors (193081718733).

402431011443 is a wasteful number, since it uses less digits than its factorization.

402431011443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83755 (or 83752 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 402431011443 its reverse (344110134204), we get a palindrome (746541145647).

The spelling of 402431011443 in words is "four hundred two billion, four hundred thirty-one million, eleven thousand, four hundred forty-three".