102321312213 has 4 divisors (see below), whose sum is σ = 136428416288. Its totient is φ = 68214208140.

The previous prime is 102321312179. The next prime is 102321312229. The reversal of 102321312213 is 312213123201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 102321312213 - 2⁸ = 102321311957 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 102321312213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102321312413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17053552033 + ... + 17053552038.

It is an arithmetic number, because the mean of its divisors is an integer number (34107104072).

Almost surely, 2^102321312213 is an apocalyptic number.

It is an amenable number.

102321312213 is a deficient number, since it is larger than the sum of its proper divisors (34107104075).

102321312213 is an equidigital number, since it uses as much as digits as its factorization.

102321312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34107104074.

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

Adding to 102321312213 its reverse (312213123201), we get a palindrome (414534435414).

The spelling of 102321312213 in words is "one hundred two billion, three hundred twenty-one million, three hundred twelve thousand, two hundred thirteen".