431142303 has 4 divisors (see below), whose sum is σ = 574856408. Its totient is φ = 287428200.

The previous prime is 431142289. The next prime is 431142329. The reversal of 431142303 is 303241134.

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

It is not a de Polignac number, because 431142303 - 2⁹ = 431141791 is a prime.

It is a super-2 number, since 2×431142303² = 371767370872287618, which contains 22 as substring.

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 431142303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431142343) 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, 71857048 + ... + 71857053.

It is an arithmetic number, because the mean of its divisors is an integer number (143714102).

Almost surely, 2^431142303 is an apocalyptic number.

431142303 is a deficient number, since it is larger than the sum of its proper divisors (143714105).

431142303 is a wasteful number, since it uses less digits than its factorization.

431142303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143714104.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 431142303 is about 20763.9664563397. The cubic root of 431142303 is about 755.4520065761.

Adding to 431142303 its reverse (303241134), we get a palindrome (734383437).

The spelling of 431142303 in words is "four hundred thirty-one million, one hundred forty-two thousand, three hundred three".