102112213123 has 8 divisors (see below), whose sum is σ = 102825991296. Its totient is φ = 101400720000.

The previous prime is 102112213121. The next prime is 102112213139. The reversal of 102112213123 is 321312211201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102112213123 - 2¹ = 102112213121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102112213123.

It is not an unprimeable number, because it can be changed into a prime (102112213121) by changing a digit.

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, 481528 + ... + 660373.

It is an arithmetic number, because the mean of its divisors is an integer number (12853248912).

Almost surely, 2^102112213123 is an apocalyptic number.

102112213123 is a deficient number, since it is larger than the sum of its proper divisors (713778173).

102112213123 is a wasteful number, since it uses less digits than its factorization.

102112213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142525.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102112213123 its reverse (321312211201), we get a palindrome (423424424324).

The spelling of 102112213123 in words is "one hundred two billion, one hundred twelve million, two hundred thirteen thousand, one hundred twenty-three".