101210311321 has 4 divisors (see below), whose sum is σ = 115668927232. Its totient is φ = 86751695412.

The previous prime is 101210311297. The next prime is 101210311331. The reversal of 101210311321 is 123113012101.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123113012101 = 211 ⋅583473991.

It is a cyclic number.

It is not a de Polignac number, because 101210311321 - 2¹⁵ = 101210278553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101210311295 and 101210311304.

It is not an unprimeable number, because it can be changed into a prime (101210311331) 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, 7229307945 + ... + 7229307958.

It is an arithmetic number, because the mean of its divisors is an integer number (28917231808).

Almost surely, 2^101210311321 is an apocalyptic number.

It is an amenable number.

101210311321 is a deficient number, since it is larger than the sum of its proper divisors (14458615911).

101210311321 is an equidigital number, since it uses as much as digits as its factorization.

101210311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14458615910.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101210311321 its reverse (123113012101), we get a palindrome (224323323422).

The spelling of 101210311321 in words is "one hundred one billion, two hundred ten million, three hundred eleven thousand, three hundred twenty-one".