10012310201921 has 2 divisors, whose sum is σ = 10012310201922. Its totient is φ = 10012310201920.

The previous prime is 10012310201899. The next prime is 10012310201953. The reversal of 10012310201921 is 12910201321001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8684284441921 + 1328025760000 = 2946911^2 + 1152400^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012310201921 - 2¹⁸ = 10012309939777 is a prime.

It is not a weakly prime, because it can be changed into another prime (10012310201321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006155100960 + 5006155100961.

It is an arithmetic number, because the mean of its divisors is an integer number (5006155100961).

Almost surely, 2^{10012310201921} is an apocalyptic number.

It is an amenable number.

10012310201921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012310201921 is an equidigital number, since it uses as much as digits as its factorization.

10012310201921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 10012310201921 its reverse (12910201321001), we get a palindrome (22922511522922).

The spelling of 10012310201921 in words is "ten trillion, twelve billion, three hundred ten million, two hundred one thousand, nine hundred twenty-one".