1431303123 has 4 divisors (see below), whose sum is σ = 1908404168. Its totient is φ = 954202080.

The previous prime is 1431303109. The next prime is 1431303131. The reversal of 1431303123 is 3213031341.

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

It is not a de Polignac number, because 1431303123 - 2⁹ = 1431302611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431303123.

It is not an unprimeable number, because it can be changed into a prime (1431303103) 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, 238550518 + ... + 238550523.

It is an arithmetic number, because the mean of its divisors is an integer number (477101042).

Almost surely, 2^1431303123 is an apocalyptic number.

1431303123 is a deficient number, since it is larger than the sum of its proper divisors (477101045).

1431303123 is an equidigital number, since it uses as much as digits as its factorization.

1431303123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477101044.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1431303123 is about 37832.5669628694. The cubic root of 1431303123 is about 1126.9652885458.

Adding to 1431303123 its reverse (3213031341), we get a palindrome (4644334464).

The spelling of 1431303123 in words is "one billion, four hundred thirty-one million, three hundred three thousand, one hundred twenty-three".