109311240019 has 4 divisors (see below), whose sum is σ = 109406211840. Its totient is φ = 109216268200.

The previous prime is 109311239993. The next prime is 109311240029. The reversal of 109311240019 is 910042113901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910042113901 = 17 ⋅53531889053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109311240019 is a prime.

It is a super-2 number, since 2×109311240019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109311240029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47484184 + ... + 47486485.

It is an arithmetic number, because the mean of its divisors is an integer number (27351552960).

Almost surely, 2^109311240019 is an apocalyptic number.

109311240019 is a deficient number, since it is larger than the sum of its proper divisors (94971821).

109311240019 is an equidigital number, since it uses as much as digits as its factorization.

109311240019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94971820.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 109311240019 in words is "one hundred nine billion, three hundred eleven million, two hundred forty thousand, nineteen".