191911000102 has 16 divisors (see below), whose sum is σ = 294602639760. Its totient is φ = 93710750112.

The previous prime is 191911000087. The next prime is 191911000117. The reversal of 191911000102 is 201000119191.

191911000102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (191911000087) and next prime (191911000117).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 469924 + ... + 777592.

It is an arithmetic number, because the mean of its divisors is an integer number (18412664985).

Almost surely, 2^191911000102 is an apocalyptic number.

191911000102 is a deficient number, since it is larger than the sum of its proper divisors (102691639658).

191911000102 is a wasteful number, since it uses less digits than its factorization.

191911000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314967.

The product of its (nonzero) digits is 162, while the sum is 25.

Adding to 191911000102 its reverse (201000119191), we get a palindrome (392911119293).

The spelling of 191911000102 in words is "one hundred ninety-one billion, nine hundred eleven million, one hundred two", and thus it is an aban number.