20110011443 has 2 divisors, whose sum is σ = 20110011444. Its totient is φ = 20110011442.

The previous prime is 20110011391. The next prime is 20110011461. The reversal of 20110011443 is 34411001102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110011443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110011473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055005721 + 10055005722.

It is an arithmetic number, because the mean of its divisors is an integer number (10055005722).

Almost surely, 2^20110011443 is an apocalyptic number.

20110011443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110011443 is an equidigital number, since it uses as much as digits as its factorization.

20110011443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20110011443 its reverse (34411001102), we get a palindrome (54521012545).

The spelling of 20110011443 in words is "twenty billion, one hundred ten million, eleven thousand, four hundred forty-three".