10000312021 has 16 divisors (see below), whose sum is σ = 11600193024. Its totient is φ = 8443847664.

The previous prime is 10000311991. The next prime is 10000312037. The reversal of 10000312021 is 12021300001.

It is not a de Polignac number, because 10000312021 - 2²¹ = 9998214869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000311989 and 10000312007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000312061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176806 + ... + 226408.

It is an arithmetic number, because the mean of its divisors is an integer number (725012064).

Almost surely, 2^10000312021 is an apocalyptic number.

It is an amenable number.

10000312021 is a deficient number, since it is larger than the sum of its proper divisors (1599881003).

10000312021 is an equidigital number, since it uses as much as digits as its factorization.

10000312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50040.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10000312021 its reverse (12021300001), we get a palindrome (22021612022).

The spelling of 10000312021 in words is "ten billion, three hundred twelve thousand, twenty-one".