181142208102 has 64 divisors (see below), whose sum is σ = 396961689600. Its totient is φ = 54850091520.

The previous prime is 181142208089. The next prime is 181142208173. The reversal of 181142208102 is 201802241181.

It is a self number, because there is not a number n which added to its sum of digits gives 181142208102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10021549 + ... + 10039607.

It is an arithmetic number, because the mean of its divisors is an integer number (6202526400).

Almost surely, 2^181142208102 is an apocalyptic number.

181142208102 is an abundant number, since it is smaller than the sum of its proper divisors (215819481498).

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

181142208102 is a wasteful number, since it uses less digits than its factorization.

181142208102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21501.

The product of its (nonzero) digits is 2048, while the sum is 30.

Adding to 181142208102 its reverse (201802241181), we get a palindrome (382944449283).

The spelling of 181142208102 in words is "one hundred eighty-one billion, one hundred forty-two million, two hundred eight thousand, one hundred two".