20231420423 has 4 divisors (see below), whose sum is σ = 20929055640. Its totient is φ = 19533785208.

The previous prime is 20231420411. The next prime is 20231420431. The reversal of 20231420423 is 32402413202.

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

It is a cyclic number.

It is not a de Polignac number, because 20231420423 - 2¹² = 20231416327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231420023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348817565 + ... + 348817622.

It is an arithmetic number, because the mean of its divisors is an integer number (5232263910).

Almost surely, 2^20231420423 is an apocalyptic number.

20231420423 is a deficient number, since it is larger than the sum of its proper divisors (697635217).

20231420423 is an equidigital number, since it uses as much as digits as its factorization.

20231420423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697635216.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20231420423 its reverse (32402413202), we get a palindrome (52633833625).

The spelling of 20231420423 in words is "twenty billion, two hundred thirty-one million, four hundred twenty thousand, four hundred twenty-three".