431143012106 has 4 divisors (see below), whose sum is σ = 646714518162. Its totient is φ = 215571506052.

The previous prime is 431143012051. The next prime is 431143012127. The reversal of 431143012106 is 601210341134.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 260619439081 + 170523573025 = 510509^2 + 412945^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107785753025 + ... + 107785753028.

Almost surely, 2^431143012106 is an apocalyptic number.

431143012106 is a deficient number, since it is larger than the sum of its proper divisors (215571506056).

431143012106 is a wasteful number, since it uses less digits than its factorization.

431143012106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215571506055.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 431143012106 in words is "four hundred thirty-one billion, one hundred forty-three million, twelve thousand, one hundred six".