20443230442311 has 4 divisors (see below), whose sum is σ = 27257640589752. Its totient is φ = 13628820294872.

The previous prime is 20443230442307. The next prime is 20443230442333. The reversal of 20443230442311 is 11324403234402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20443230442311 - 2² = 20443230442307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20443230042311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407205073716 + ... + 3407205073721.

It is an arithmetic number, because the mean of its divisors is an integer number (6814410147438).

Almost surely, 2^{20443230442311} is an apocalyptic number.

20443230442311 is a deficient number, since it is larger than the sum of its proper divisors (6814410147441).

20443230442311 is an equidigital number, since it uses as much as digits as its factorization.

20443230442311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814410147440.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 20443230442311 its reverse (11324403234402), we get a palindrome (31767633676713).

The spelling of 20443230442311 in words is "twenty trillion, four hundred forty-three billion, two hundred thirty million, four hundred forty-two thousand, three hundred eleven".