102313212123 has 16 divisors (see below), whose sum is σ = 138341567360. Its totient is φ = 67247578944.

The previous prime is 102313212103. The next prime is 102313212139. The reversal of 102313212123 is 321212313201.

It is not a de Polignac number, because 102313212123 - 2⁶ = 102313212059 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 102313212123.

It is not an unprimeable number, because it can be changed into a prime (102313212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464040 + ... + 648042.

It is an arithmetic number, because the mean of its divisors is an integer number (8646347960).

Almost surely, 2^102313212123 is an apocalyptic number.

102313212123 is a deficient number, since it is larger than the sum of its proper divisors (36028355237).

102313212123 is a wasteful number, since it uses less digits than its factorization.

102313212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186618.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102313212123 its reverse (321212313201), we get a palindrome (423525525324).

The spelling of 102313212123 in words is "one hundred two billion, three hundred thirteen million, two hundred twelve thousand, one hundred twenty-three".