20423100003347 has 2 divisors, whose sum is σ = 20423100003348. Its totient is φ = 20423100003346.

The previous prime is 20423100003331. The next prime is 20423100003377. The reversal of 20423100003347 is 74330000132402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20423100003347 - 2⁴ = 20423100003331 is a prime.

It is a super-2 number, since 2×20423100003347² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20423100003377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211550001673 + 10211550001674.

It is an arithmetic number, because the mean of its divisors is an integer number (10211550001674).

Almost surely, 2^{20423100003347} is an apocalyptic number.

20423100003347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423100003347 is an equidigital number, since it uses as much as digits as its factorization.

20423100003347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 20423100003347 its reverse (74330000132402), we get a palindrome (94753100135749).

The spelling of 20423100003347 in words is "twenty trillion, four hundred twenty-three billion, one hundred million, three thousand, three hundred forty-seven".