109603001918 has 4 divisors (see below), whose sum is σ = 164404502880. Its totient is φ = 54801500958.

The previous prime is 109603001891. The next prime is 109603001927. The reversal of 109603001918 is 819100306901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 819100306901 = 29 ⋅28244838169.

It is a super-2 number, since 2×109603001918² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27400750478 + ... + 27400750481.

It is an arithmetic number, because the mean of its divisors is an integer number (41101125720).

Almost surely, 2^109603001918 is an apocalyptic number.

109603001918 is a deficient number, since it is larger than the sum of its proper divisors (54801500962).

109603001918 is an equidigital number, since it uses as much as digits as its factorization.

109603001918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54801500961.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 109603001918 in words is "one hundred nine billion, six hundred three million, one thousand, nine hundred eighteen".