201100012443 has 160 divisors (see below), whose sum is σ = 342251965440. Its totient is φ = 116623203840.

The previous prime is 201100012429. The next prime is 201100012453. The reversal of 201100012443 is 344210001102.

201100012443 is a `hidden beast` number, since 201 + 10 + 0 + 0 + 12 + 443 = 666.

It is not a de Polignac number, because 201100012443 - 2¹⁴ = 201099996059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201100012453) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 479952088 + ... + 479952506.

It is an arithmetic number, because the mean of its divisors is an integer number (2139074784).

Almost surely, 2^201100012443 is an apocalyptic number.

201100012443 is a deficient number, since it is larger than the sum of its proper divisors (141151952997).

201100012443 is a wasteful number, since it uses less digits than its factorization.

201100012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201100012443 its reverse (344210001102), we get a palindrome (545310013545).

The spelling of 201100012443 in words is "two hundred one billion, one hundred million, twelve thousand, four hundred forty-three".