102312301321221 has 16 divisors (see below), whose sum is σ = 137712825197184. Its totient is φ = 67562168027904.

The previous prime is 102312301321213. The next prime is 102312301321229. The reversal of 102312301321221 is 122123103213201.

It is an interprime number because it is at equal distance from previous prime (102312301321213) and next prime (102312301321229).

It is not a de Polignac number, because 102312301321221 - 2³ = 102312301321213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102312301321191 and 102312301321200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312301321229) 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 15 ways as a sum of consecutive naturals, for example, 272169985 + ... + 272545638.

It is an arithmetic number, because the mean of its divisors is an integer number (8607051574824).

Almost surely, 2^{102312301321221} is an apocalyptic number.

It is an amenable number.

102312301321221 is a deficient number, since it is larger than the sum of its proper divisors (35400523875963).

102312301321221 is a wasteful number, since it uses less digits than its factorization.

102312301321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544716220.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 102312301321221 its reverse (122123103213201), we get a palindrome (224435404534422).

The spelling of 102312301321221 in words is "one hundred two trillion, three hundred twelve billion, three hundred one million, three hundred twenty-one thousand, two hundred twenty-one".