20012700372443 has 2 divisors, whose sum is σ = 20012700372444. Its totient is φ = 20012700372442.

The previous prime is 20012700372421. The next prime is 20012700372593. The reversal of 20012700372443 is 34427300721002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012700372443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012700372403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006350186221 + 10006350186222.

It is an arithmetic number, because the mean of its divisors is an integer number (10006350186222).

Almost surely, 2^{20012700372443} is an apocalyptic number.

20012700372443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012700372443 is an equidigital number, since it uses as much as digits as its factorization.

20012700372443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 20012700372443 in words is "twenty trillion, twelve billion, seven hundred million, three hundred seventy-two thousand, four hundred forty-three".