1431203423 has 8 divisors (see below), whose sum is σ = 1549044000. Its totient is φ = 1314469728.

The previous prime is 1431203419. The next prime is 1431203453. The reversal of 1431203423 is 3243021341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1431203423 - 2² = 1431203419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431203453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274028 + ... + 279201.

It is an arithmetic number, because the mean of its divisors is an integer number (193630500).

Almost surely, 2^1431203423 is an apocalyptic number.

1431203423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1431203423 is a deficient number, since it is larger than the sum of its proper divisors (117840577).

1431203423 is a wasteful number, since it uses less digits than its factorization.

1431203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553441.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1431203423 is about 37831.2492920866. The cubic root of 1431203423 is about 1126.9391210051.

Adding to 1431203423 its reverse (3243021341), we get a palindrome (4674224764).

The spelling of 1431203423 in words is "one billion, four hundred thirty-one million, two hundred three thousand, four hundred twenty-three".