20201101442939 has 2 divisors, whose sum is σ = 20201101442940. Its totient is φ = 20201101442938.

The previous prime is 20201101442927. The next prime is 20201101443031. The reversal of 20201101442939 is 93924410110202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201101442939 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201101444939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100550721469 + 10100550721470.

It is an arithmetic number, because the mean of its divisors is an integer number (10100550721470).

Almost surely, 2^{20201101442939} is an apocalyptic number.

20201101442939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201101442939 is an equidigital number, since it uses as much as digits as its factorization.

20201101442939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 20201101442939 in words is "twenty trillion, two hundred one billion, one hundred one million, four hundred forty-two thousand, nine hundred thirty-nine".