10012120001321 has 2 divisors, whose sum is σ = 10012120001322. Its totient is φ = 10012120001320.

The previous prime is 10012120001311. The next prime is 10012120001327. The reversal of 10012120001321 is 12310002121001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9982282275625 + 29837725696 = 3159475^2 + 172736^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012120001321 - 2¹⁰ = 10012120000297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10012120001296 and 10012120001305.

It is not a weakly prime, because it can be changed into another prime (10012120001327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006060000660 + 5006060000661.

It is an arithmetic number, because the mean of its divisors is an integer number (5006060000661).

Almost surely, 2^{10012120001321} is an apocalyptic number.

It is an amenable number.

10012120001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012120001321 is an equidigital number, since it uses as much as digits as its factorization.

10012120001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10012120001321 its reverse (12310002121001), we get a palindrome (22322122122322).

The spelling of 10012120001321 in words is "ten trillion, twelve billion, one hundred twenty million, one thousand, three hundred twenty-one".