10311321121 has 4 divisors (see below), whose sum is σ = 10321441200. Its totient is φ = 10301201044.

The previous prime is 10311321103. The next prime is 10311321161. The reversal of 10311321121 is 12112311301.

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: 12112311301 = 1301 ⋅9310001.

It is a cyclic number.

It is not a de Polignac number, because 10311321121 - 2⁵ = 10311321089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10311321095 and 10311321104.

It is not an unprimeable number, because it can be changed into a prime (10311321161) 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, 5058511 + ... + 5060548.

It is an arithmetic number, because the mean of its divisors is an integer number (2580360300).

Almost surely, 2^10311321121 is an apocalyptic number.

It is an amenable number.

10311321121 is a deficient number, since it is larger than the sum of its proper divisors (10120079).

10311321121 is a wasteful number, since it uses less digits than its factorization.

10311321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120078.

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

Adding to 10311321121 its reverse (12112311301), we get a palindrome (22423632422).

The spelling of 10311321121 in words is "ten billion, three hundred eleven million, three hundred twenty-one thousand, one hundred twenty-one".