20213203424444 has 24 divisors (see below), whose sum is σ = 36593047323840. Its totient is φ = 9758050456896.

The previous prime is 20213203424413. The next prime is 20213203424501. The reversal of 20213203424444 is 44442430231202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39151874 + ... + 39664790.

It is an arithmetic number, because the mean of its divisors is an integer number (1524710305160).

Almost surely, 2^{20213203424444} is an apocalyptic number.

It is an amenable number.

20213203424444 is a deficient number, since it is larger than the sum of its proper divisors (16379843899396).

20213203424444 is a wasteful number, since it uses less digits than its factorization.

20213203424444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852677 (or 852675 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 20213203424444 its reverse (44442430231202), we get a palindrome (64655633655646).

The spelling of 20213203424444 in words is "twenty trillion, two hundred thirteen billion, two hundred three million, four hundred twenty-four thousand, four hundred forty-four".