1423531113 has 4 divisors (see below), whose sum is σ = 1898041488. Its totient is φ = 949020740.

The previous prime is 1423531061. The next prime is 1423531121. The reversal of 1423531113 is 3111353241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3111353241 = 3 ⋅1037117747.

It is a cyclic number.

It is not a de Polignac number, because 1423531113 - 2⁹ = 1423530601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423531183) 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, 237255183 + ... + 237255188.

It is an arithmetic number, because the mean of its divisors is an integer number (474510372).

Almost surely, 2^1423531113 is an apocalyptic number.

It is an amenable number.

1423531113 is a deficient number, since it is larger than the sum of its proper divisors (474510375).

1423531113 is an equidigital number, since it uses as much as digits as its factorization.

1423531113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474510374.

The product of its digits is 1080, while the sum is 24.

The square root of 1423531113 is about 37729.7112763933. The cubic root of 1423531113 is about 1124.9217691774.

Adding to 1423531113 its reverse (3111353241), we get a palindrome (4534884354).

The spelling of 1423531113 in words is "one billion, four hundred twenty-three million, five hundred thirty-one thousand, one hundred thirteen".