20142120204443 has 2 divisors, whose sum is σ = 20142120204444. Its totient is φ = 20142120204442.

The previous prime is 20142120204383. The next prime is 20142120204463. The reversal of 20142120204443 is 34440202124102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20142120204443 - 2⁶ = 20142120204379 is a prime.

It is not a weakly prime, because it can be changed into another prime (20142120204463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071060102221 + 10071060102222.

It is an arithmetic number, because the mean of its divisors is an integer number (10071060102222).

Almost surely, 2^{20142120204443} is an apocalyptic number.

20142120204443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20142120204443 is an equidigital number, since it uses as much as digits as its factorization.

20142120204443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20142120204443 its reverse (34440202124102), we get a palindrome (54582322328545).

The spelling of 20142120204443 in words is "twenty trillion, one hundred forty-two billion, one hundred twenty million, two hundred four thousand, four hundred forty-three".