20111152443 has 8 divisors (see below), whose sum is σ = 27679865856. Its totient is φ = 12974937000.

The previous prime is 20111152429. The next prime is 20111152463. The reversal of 20111152443 is 34425111102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20111152443 - 2⁴ = 20111152427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111152463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108124383 + ... + 108124568.

It is an arithmetic number, because the mean of its divisors is an integer number (3459983232).

Almost surely, 2^20111152443 is an apocalyptic number.

20111152443 is a deficient number, since it is larger than the sum of its proper divisors (7568713413).

20111152443 is a wasteful number, since it uses less digits than its factorization.

20111152443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216248985.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20111152443 its reverse (34425111102), we get a palindrome (54536263545).

The spelling of 20111152443 in words is "twenty billion, one hundred eleven million, one hundred fifty-two thousand, four hundred forty-three".