1423403204231 has 4 divisors (see below), whose sum is σ = 1423424551200. Its totient is φ = 1423381857264.

The previous prime is 1423403204207. The next prime is 1423403204239. The reversal of 1423403204231 is 1324023043241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423403204231 is a prime.

It is a super-2 number, since 2×1423403204231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423403204194 and 1423403204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423403204239) 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, 10573151 + ... + 10706928.

It is an arithmetic number, because the mean of its divisors is an integer number (355856137800).

Almost surely, 2^{1423403204231} is an apocalyptic number.

1423403204231 is a deficient number, since it is larger than the sum of its proper divisors (21346969).

1423403204231 is an equidigital number, since it uses as much as digits as its factorization.

1423403204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21346968.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1423403204231 its reverse (1324023043241), we get a palindrome (2747426247472).

The spelling of 1423403204231 in words is "one trillion, four hundred twenty-three billion, four hundred three million, two hundred four thousand, two hundred thirty-one".