20346214423 has 2 divisors, whose sum is σ = 20346214424. Its totient is φ = 20346214422.

The previous prime is 20346214409. The next prime is 20346214519. The reversal of 20346214423 is 32441264302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20346214423 - 2²¹ = 20344117271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20346214403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173107211 + 10173107212.

It is an arithmetic number, because the mean of its divisors is an integer number (10173107212).

Almost surely, 2^20346214423 is an apocalyptic number.

20346214423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346214423 is an equidigital number, since it uses as much as digits as its factorization.

20346214423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20346214423 its reverse (32441264302), we get a palindrome (52787478725).

The spelling of 20346214423 in words is "twenty billion, three hundred forty-six million, two hundred fourteen thousand, four hundred twenty-three".