109019209321 has 6 divisors (see below), whose sum is σ = 119831031866. Its totient is φ = 99108372000.

The previous prime is 109019209319. The next prime is 109019209399. The reversal of 109019209321 is 123902910901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93003041296 + 16016168025 = 304964^2 + 126555^2 .

It is not a de Polignac number, because 109019209321 - 2¹ = 109019209319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109019209301) 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 5 ways as a sum of consecutive naturals, for example, 450492480 + ... + 450492721.

Almost surely, 2^109019209321 is an apocalyptic number.

109019209321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109019209321 is a deficient number, since it is larger than the sum of its proper divisors (10811822545).

109019209321 is an equidigital number, since it uses as much as digits as its factorization.

109019209321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900985223 (or 900985212 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 109019209321 in words is "one hundred nine billion, nineteen million, two hundred nine thousand, three hundred twenty-one".