10991102 has 16 divisors (see below), whose sum is σ = 17489952. Its totient is φ = 5169120.

The previous prime is 10991089. The next prime is 10991107. The reversal of 10991102 is 20119901.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10991107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848 + ... + 4764.

It is an arithmetic number, because the mean of its divisors is an integer number (1093122).

Almost surely, 2^10991102 is an apocalyptic number.

10991102 is a deficient number, since it is larger than the sum of its proper divisors (6498850).

10991102 is a wasteful number, since it uses less digits than its factorization.

10991102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 10991102 is about 3315.2830950011. The cubic root of 10991102 is about 222.3380262900.

The spelling of 10991102 in words is "ten million, nine hundred ninety-one thousand, one hundred two".