10321313012021 has 4 divisors (see below), whose sum is σ = 11259614194944. Its totient is φ = 9383011829100.

The previous prime is 10321313011987. The next prime is 10321313012081. The reversal of 10321313012021 is 12021031312301.

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 10321313012021 - 2¹⁰ = 10321313010997 is a prime.

It is a super-2 number, since 2×10321313012021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10321313011984 and 10321313012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321313012081) 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, 469150591445 + ... + 469150591466.

It is an arithmetic number, because the mean of its divisors is an integer number (2814903548736).

Almost surely, 2^{10321313012021} is an apocalyptic number.

10321313012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10321313012021 is a deficient number, since it is larger than the sum of its proper divisors (938301182923).

10321313012021 is an equidigital number, since it uses as much as digits as its factorization.

10321313012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938301182922.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10321313012021 its reverse (12021031312301), we get a palindrome (22342344324322).

The spelling of 10321313012021 in words is "ten trillion, three hundred twenty-one billion, three hundred thirteen million, twelve thousand, twenty-one".