109190251099 has 16 divisors (see below), whose sum is σ = 121795228800. Its totient is φ = 97280797824.

The previous prime is 109190251097. The next prime is 109190251103. The reversal of 109190251099 is 990152091901.

It is a happy number.

It is not a de Polignac number, because 109190251099 - 2¹ = 109190251097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109190251097) 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 in 15 ways as a sum of consecutive naturals, for example, 272404 + ... + 540910.

It is an arithmetic number, because the mean of its divisors is an integer number (7612201800).

Almost surely, 2^109190251099 is an apocalyptic number.

109190251099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

109190251099 is a deficient number, since it is larger than the sum of its proper divisors (12604977701).

109190251099 is a wasteful number, since it uses less digits than its factorization.

109190251099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269802.

The product of its (nonzero) digits is 65610, while the sum is 46.

The spelling of 109190251099 in words is "one hundred nine billion, one hundred ninety million, two hundred fifty-one thousand, ninety-nine".