201019200102 has 24 divisors (see below), whose sum is σ = 497761829136. Its totient is φ = 57434057136.

The previous prime is 201019199971. The next prime is 201019200163. The reversal of 201019200102 is 201002910102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797695113 + ... + 797695364.

It is an arithmetic number, because the mean of its divisors is an integer number (20740076214).

Almost surely, 2^201019200102 is an apocalyptic number.

201019200102 is an abundant number, since it is smaller than the sum of its proper divisors (296742629034).

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

201019200102 is a wasteful number, since it uses less digits than its factorization.

201019200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595390492 (or 1595390489 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 201019200102 in words is "two hundred one billion, nineteen million, two hundred thousand, one hundred two".