19100191002 has 16 divisors (see below), whose sum is σ = 38578604832. Its totient is φ = 6303693200.

The previous prime is 19100190973. The next prime is 19100191031. The reversal of 19100191002 is 20019100191.

It is an interprime number because it is at equal distance from previous prime (19100190973) and next prime (19100191031).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15758628 + ... + 15759839.

It is an arithmetic number, because the mean of its divisors is an integer number (2411162802).

Almost surely, 2^19100191002 is an apocalyptic number.

19100191002 is an abundant number, since it is smaller than the sum of its proper divisors (19478413830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19100191002 is a wasteful number, since it uses less digits than its factorization.

19100191002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31518573.

The product of its (nonzero) digits is 162, while the sum is 24.

Adding to 19100191002 its reverse (20019100191), we get a palindrome (39119291193).

The spelling of 19100191002 in words is "nineteen billion, one hundred million, one hundred ninety-one thousand, two".