10311909021 has 36 divisors (see below), whose sum is σ = 15206357088. Its totient is φ = 6733756848.

The previous prime is 10311909019. The next prime is 10311909061. The reversal of 10311909021 is 12090911301.

It is not a de Polignac number, because 10311909021 - 2¹ = 10311909019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311909061) 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 35 ways as a sum of consecutive naturals, for example, 13878376 + ... + 13879118.

It is an arithmetic number, because the mean of its divisors is an integer number (422398808).

Almost surely, 2^10311909021 is an apocalyptic number.

It is an amenable number.

10311909021 is a deficient number, since it is larger than the sum of its proper divisors (4894448067).

10311909021 is an equidigital number, since it uses as much as digits as its factorization.

10311909021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 10311909021 in words is "ten billion, three hundred eleven million, nine hundred nine thousand, twenty-one".