20101400444443 has 2 divisors, whose sum is σ = 20101400444444. Its totient is φ = 20101400444442.

The previous prime is 20101400444399. The next prime is 20101400444467. The reversal of 20101400444443 is 34444400410102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101400444443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101400444143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050700222221 + 10050700222222.

It is an arithmetic number, because the mean of its divisors is an integer number (10050700222222).

Almost surely, 2^{20101400444443} is an apocalyptic number.

20101400444443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101400444443 is an equidigital number, since it uses as much as digits as its factorization.

20101400444443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 20101400444443 its reverse (34444400410102), we get a palindrome (54545800854545).

The spelling of 20101400444443 in words is "twenty trillion, one hundred one billion, four hundred million, four hundred forty-four thousand, four hundred forty-three".