102102244142 has 16 divisors (see below), whose sum is σ = 157272814512. Its totient is φ = 49686423360.

The previous prime is 102102244081. The next prime is 102102244157. The reversal of 102102244142 is 241442201201.

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, 2088353 + ... + 2136684.

It is an arithmetic number, because the mean of its divisors is an integer number (9829550907).

Almost surely, 2^102102244142 is an apocalyptic number.

102102244142 is a deficient number, since it is larger than the sum of its proper divisors (55170570370).

102102244142 is a wasteful number, since it uses less digits than its factorization.

102102244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225363.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 102102244142 its reverse (241442201201), we get a palindrome (343544445343).

The spelling of 102102244142 in words is "one hundred two billion, one hundred two million, two hundred forty-four thousand, one hundred forty-two".