101221100323 has 4 divisors (see below), whose sum is σ = 115681257520. Its totient is φ = 86760943128.

The previous prime is 101221100317. The next prime is 101221100333. The reversal of 101221100323 is 323001122101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101221100323 - 2¹⁷ = 101220969251 is a prime.

It is a super-2 number, since 2×101221100323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101221100297 and 101221100306.

It is not an unprimeable number, because it can be changed into a prime (101221100303) 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, 7230078588 + ... + 7230078601.

It is an arithmetic number, because the mean of its divisors is an integer number (28920314380).

Almost surely, 2^101221100323 is an apocalyptic number.

101221100323 is a deficient number, since it is larger than the sum of its proper divisors (14460157197).

101221100323 is an equidigital number, since it uses as much as digits as its factorization.

101221100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14460157196.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101221100323 its reverse (323001122101), we get a palindrome (424222222424).

The spelling of 101221100323 in words is "one hundred one billion, two hundred twenty-one million, one hundred thousand, three hundred twenty-three".