1231300423 has 4 divisors (see below), whose sum is σ = 1284835248. Its totient is φ = 1177765600.

The previous prime is 1231300381. The next prime is 1231300451. The reversal of 1231300423 is 3240031321.

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

It is not a de Polignac number, because 1231300423 - 2⁹ = 1231299911 is a prime.

It is a super-2 number, since 2×1231300423² = 3032201463359957858, 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 1231300423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231300723) 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, 26767378 + ... + 26767423.

It is an arithmetic number, because the mean of its divisors is an integer number (321208812).

Almost surely, 2^1231300423 is an apocalyptic number.

1231300423 is a deficient number, since it is larger than the sum of its proper divisors (53534825).

1231300423 is an equidigital number, since it uses as much as digits as its factorization.

1231300423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53534824.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1231300423 is about 35089.8906096899. The cubic root of 1231300423 is about 1071.8187320552.

Adding to 1231300423 its reverse (3240031321), we get a palindrome (4471331744).

The spelling of 1231300423 in words is "one billion, two hundred thirty-one million, three hundred thousand, four hundred twenty-three".