103191519218 has 6 divisors (see below), whose sum is σ = 154787960271. Its totient is φ = 51595532462.

The previous prime is 103191519217. The next prime is 103191519287. The reversal of 103191519218 is 812915191301.

It can be written as a sum of positive squares in only one way, i.e., 51595759609 + 51595759609 = 227147^2 + 227147^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=227147.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103191519217) 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 2 ways as a sum of consecutive naturals, for example, 340721 + ... + 567867.

Almost surely, 2^103191519218 is an apocalyptic number.

103191519218 is a deficient number, since it is larger than the sum of its proper divisors (51596441053).

103191519218 is an frugal number, since it uses more digits than its factorization.

103191519218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454296 (or 227149 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 41.

The spelling of 103191519218 in words is "one hundred three billion, one hundred ninety-one million, five hundred nineteen thousand, two hundred eighteen".