2091102044 has 6 divisors (see below), whose sum is σ = 3659428584. Its totient is φ = 1045551020.

The previous prime is 2091101977. The next prime is 2091102047. The reversal of 2091102044 is 4402011902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091102047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261387752 + ... + 261387759.

It is an arithmetic number, because the mean of its divisors is an integer number (609904764).

Almost surely, 2^2091102044 is an apocalyptic number.

It is an amenable number.

2091102044 is a deficient number, since it is larger than the sum of its proper divisors (1568326540).

2091102044 is a wasteful number, since it uses less digits than its factorization.

2091102044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522775515 (or 522775513 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2091102044 is about 45728.5692319364. The cubic root of 2091102044 is about 1278.7679477807.

Adding to 2091102044 its reverse (4402011902), we get a palindrome (6493113946).

The spelling of 2091102044 in words is "two billion, ninety-one million, one hundred two thousand, forty-four".