10320312021 has 16 divisors (see below), whose sum is σ = 14210500608. Its totient is φ = 6655359600.

The previous prime is 10320312017. The next prime is 10320312049. The reversal of 10320312021 is 12021302301.

It is not a de Polignac number, because 10320312021 - 2² = 10320312017 is a prime.

It is a super-3 number, since 3×10320312021³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320312091) 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 15 ways as a sum of consecutive naturals, for example, 201210 + ... + 247236.

It is an arithmetic number, because the mean of its divisors is an integer number (888156288).

Almost surely, 2^10320312021 is an apocalyptic number.

It is an amenable number.

10320312021 is a deficient number, since it is larger than the sum of its proper divisors (3890188587).

10320312021 is a wasteful number, since it uses less digits than its factorization.

10320312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48472.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10320312021 its reverse (12021302301), we get a palindrome (22341614322).

The spelling of 10320312021 in words is "ten billion, three hundred twenty million, three hundred twelve thousand, twenty-one".