20324354623 has 2 divisors, whose sum is σ = 20324354624. Its totient is φ = 20324354622.

The previous prime is 20324354599. The next prime is 20324354651. The reversal of 20324354623 is 32645342302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20324354623 - 2⁹ = 20324354111 is a prime.

It is a super-2 number, since 2×20324354623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324354683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162177311 + 10162177312.

It is an arithmetic number, because the mean of its divisors is an integer number (10162177312).

Almost surely, 2^20324354623 is an apocalyptic number.

20324354623 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324354623 is an equidigital number, since it uses as much as digits as its factorization.

20324354623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 20324354623 its reverse (32645342302), we get a palindrome (52969696925).

The spelling of 20324354623 in words is "twenty billion, three hundred twenty-four million, three hundred fifty-four thousand, six hundred twenty-three".