102320013221 has 8 divisors (see below), whose sum is σ = 106810755840. Its totient is φ = 97832774512.

The previous prime is 102320013203. The next prime is 102320013247. The reversal of 102320013221 is 122310023201.

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 102320013221 - 2¹⁸ = 102319751077 is a prime.

It is a super-2 number, since 2×102320013221² (a number of 23 digits) contains 22 as substring.

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 102320013221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102320013821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816206 + ... + 933183.

It is an arithmetic number, because the mean of its divisors is an integer number (13351344480).

Almost surely, 2^102320013221 is an apocalyptic number.

It is an amenable number.

102320013221 is a deficient number, since it is larger than the sum of its proper divisors (4490742619).

102320013221 is a wasteful number, since it uses less digits than its factorization.

102320013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751955.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102320013221 its reverse (122310023201), we get a palindrome (224630036422).

The spelling of 102320013221 in words is "one hundred two billion, three hundred twenty million, thirteen thousand, two hundred twenty-one".