19101002020102 has 16 divisors (see below), whose sum is σ = 28664555882400. Its totient is φ = 9546151003200.

The previous prime is 19101002020039. The next prime is 19101002020127. The reversal of 19101002020102 is 20102020010191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19101002020102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41060224 + ... + 41522812.

It is an arithmetic number, because the mean of its divisors is an integer number (1791534742650).

Almost surely, 2^{19101002020102} is an apocalyptic number.

19101002020102 is a deficient number, since it is larger than the sum of its proper divisors (9563553862298).

19101002020102 is a wasteful number, since it uses less digits than its factorization.

19101002020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471951.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 19101002020102 its reverse (20102020010191), we get a palindrome (39203022030293).

The spelling of 19101002020102 in words is "nineteen trillion, one hundred one billion, two million, twenty thousand, one hundred two".