20240320423 has 2 divisors, whose sum is σ = 20240320424. Its totient is φ = 20240320422.

The previous prime is 20240320403. The next prime is 20240320469. The reversal of 20240320423 is 32402304202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20240320423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20240320394 and 20240320403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20240320403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120160211 + 10120160212.

It is an arithmetic number, because the mean of its divisors is an integer number (10120160212).

Almost surely, 2^20240320423 is an apocalyptic number.

20240320423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240320423 is an equidigital number, since it uses as much as digits as its factorization.

20240320423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20240320423 its reverse (32402304202), we get a palindrome (52642624625).

The spelling of 20240320423 in words is "twenty billion, two hundred forty million, three hundred twenty thousand, four hundred twenty-three".