20462720202623 has 2 divisors, whose sum is σ = 20462720202624. Its totient is φ = 20462720202622.

The previous prime is 20462720202553. The next prime is 20462720202647. The reversal of 20462720202623 is 32620202726402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20462720202623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20462720202653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10231360101311 + 10231360101312.

It is an arithmetic number, because the mean of its divisors is an integer number (10231360101312).

Almost surely, 2^{20462720202623} is an apocalyptic number.

20462720202623 is a deficient number, since it is larger than the sum of its proper divisors (1).

20462720202623 is an equidigital number, since it uses as much as digits as its factorization.

20462720202623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 20462720202623 in words is "twenty trillion, four hundred sixty-two billion, seven hundred twenty million, two hundred two thousand, six hundred twenty-three".