10311130021 has 4 divisors (see below), whose sum is σ = 10465027552. Its totient is φ = 10157232492.

The previous prime is 10311130001. The next prime is 10311130079. The reversal of 10311130021 is 12003111301.

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 10311130021 - 2¹³ = 10311121829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10311129983 and 10311130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311130001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76948665 + ... + 76948798.

It is an arithmetic number, because the mean of its divisors is an integer number (2616256888).

Almost surely, 2^10311130021 is an apocalyptic number.

It is an amenable number.

10311130021 is a deficient number, since it is larger than the sum of its proper divisors (153897531).

10311130021 is an equidigital number, since it uses as much as digits as its factorization.

10311130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153897530.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10311130021 its reverse (12003111301), we get a palindrome (22314241322).

The spelling of 10311130021 in words is "ten billion, three hundred eleven million, one hundred thirty thousand, twenty-one".