201100044491 has 2 divisors, whose sum is σ = 201100044492. Its totient is φ = 201100044490.

The previous prime is 201100044421. The next prime is 201100044499. The reversal of 201100044491 is 194440001102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201100044491 - 2²² = 201095850187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201100044491.

It is not a weakly prime, because it can be changed into another prime (201100044499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550022245 + 100550022246.

It is an arithmetic number, because the mean of its divisors is an integer number (100550022246).

Almost surely, 2^201100044491 is an apocalyptic number.

201100044491 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100044491 is an equidigital number, since it uses as much as digits as its factorization.

201100044491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 201100044491 its reverse (194440001102), we get a palindrome (395540045593).

The spelling of 201100044491 in words is "two hundred one billion, one hundred million, forty-four thousand, four hundred ninety-one".