1109111009998 has 32 divisors (see below), whose sum is σ = 1737863714304. Its totient is φ = 529875273312.

The previous prime is 1109111009969. The next prime is 1109111010013. The reversal of 1109111009998 is 8999001119011.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 283875961 + ... + 283879867.

It is an arithmetic number, because the mean of its divisors is an integer number (54308241072).

Almost surely, 2^{1109111009998} is an apocalyptic number.

1109111009998 is a deficient number, since it is larger than the sum of its proper divisors (628752704306).

1109111009998 is a wasteful number, since it uses less digits than its factorization.

1109111009998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976.

The product of its (nonzero) digits is 52488, while the sum is 49.

The spelling of 1109111009998 in words is "one trillion, one hundred nine billion, one hundred eleven million, nine thousand, nine hundred ninety-eight".