101221217323 has 2 divisors, whose sum is σ = 101221217324. Its totient is φ = 101221217322.

The previous prime is 101221217309. The next prime is 101221217333. The reversal of 101221217323 is 323712122101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221217323 is a prime.

It is not a weakly prime, because it can be changed into another prime (101221217333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610608661 + 50610608662.

It is an arithmetic number, because the mean of its divisors is an integer number (50610608662).

Almost surely, 2^101221217323 is an apocalyptic number.

101221217323 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221217323 is an equidigital number, since it uses as much as digits as its factorization.

101221217323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 101221217323 its reverse (323712122101), we get a palindrome (424933339424).

The spelling of 101221217323 in words is "one hundred one billion, two hundred twenty-one million, two hundred seventeen thousand, three hundred twenty-three".