1431023 has 16 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 1195200.

The previous prime is 1431013. The next prime is 1431029. The reversal of 1431023 is 3201341.

It is a cyclic number.

It is not a de Polignac number, because 1431023 - 2⁴ = 1431007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1430989 and 1431007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8486 + ... + 8652.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1431023 is an apocalyptic number.

1431023 is a deficient number, since it is larger than the sum of its proper divisors (262417).

1431023 is a wasteful number, since it uses less digits than its factorization.

1431023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1431023 is about 1196.2537356264. The cubic root of 1431023 is about 112.6891763591.

Adding to 1431023 its reverse (3201341), we get a palindrome (4632364).

The spelling of 1431023 in words is "one million, four hundred thirty-one thousand, twenty-three".