20214403423 has 2 divisors, whose sum is σ = 20214403424. Its totient is φ = 20214403422.

The previous prime is 20214403409. The next prime is 20214403463. The reversal of 20214403423 is 32430441202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20214403423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214403463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107201711 + 10107201712.

It is an arithmetic number, because the mean of its divisors is an integer number (10107201712).

Almost surely, 2^20214403423 is an apocalyptic number.

20214403423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214403423 is an equidigital number, since it uses as much as digits as its factorization.

20214403423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20214403423 its reverse (32430441202), we get a palindrome (52644844625).

The spelling of 20214403423 in words is "twenty billion, two hundred fourteen million, four hundred three thousand, four hundred twenty-three".