102042121312 has 24 divisors (see below), whose sum is σ = 203893869816. Its totient is φ = 50259551232.

The previous prime is 102042121289. The next prime is 102042121339. The reversal of 102042121312 is 213121240201.

It is a self number, because there is not a number n which added to its sum of digits gives 102042121312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23794993 + ... + 23799280.

It is an arithmetic number, because the mean of its divisors is an integer number (8495577909).

Almost surely, 2^102042121312 is an apocalyptic number.

It is an amenable number.

102042121312 is a deficient number, since it is larger than the sum of its proper divisors (101851748504).

102042121312 is an equidigital number, since it uses as much as digits as its factorization.

102042121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47594350 (or 47594342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102042121312 its reverse (213121240201), we get a palindrome (315163361513).

The spelling of 102042121312 in words is "one hundred two billion, forty-two million, one hundred twenty-one thousand, three hundred twelve".