1431323401 has 4 divisors (see below), whose sum is σ = 1442593792. Its totient is φ = 1420053012.

The previous prime is 1431323393. The next prime is 1431323431. The reversal of 1431323401 is 1043231341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1431323401 - 2³ = 1431323393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431323431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635005 + ... + 5635258.

It is an arithmetic number, because the mean of its divisors is an integer number (360648448).

Almost surely, 2^1431323401 is an apocalyptic number.

It is an amenable number.

1431323401 is a deficient number, since it is larger than the sum of its proper divisors (11270391).

1431323401 is a wasteful number, since it uses less digits than its factorization.

1431323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270390.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1431323401 is about 37832.8349585383. The cubic root of 1431323401 is about 1126.9706106177.

Adding to 1431323401 its reverse (1043231341), we get a palindrome (2474554742).

The spelling of 1431323401 in words is "one billion, four hundred thirty-one million, three hundred twenty-three thousand, four hundred one".