10313111021 has 4 divisors (see below), whose sum is σ = 10313497152. Its totient is φ = 10312724892.

The previous prime is 10313110991. The next prime is 10313111027. The reversal of 10313111021 is 12011131301.

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.

It is a cyclic number.

It is not a de Polignac number, because 10313111021 - 2⁶ = 10313110957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10313110987 and 10313111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10313111027) 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, 149765 + ... + 207498.

It is an arithmetic number, because the mean of its divisors is an integer number (2578374288).

Almost surely, 2^10313111021 is an apocalyptic number.

It is an amenable number.

10313111021 is a deficient number, since it is larger than the sum of its proper divisors (386131).

10313111021 is an equidigital number, since it uses as much as digits as its factorization.

10313111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386130.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10313111021 its reverse (12011131301), we get a palindrome (22324242322).

The spelling of 10313111021 in words is "ten billion, three hundred thirteen million, one hundred eleven thousand, twenty-one".