10136621015321 has 2 divisors, whose sum is σ = 10136621015322. Its totient is φ = 10136621015320.

The previous prime is 10136621015299. The next prime is 10136621015333. The reversal of 10136621015321 is 12351012663101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8889968376025 + 1246652639296 = 2981605^2 + 1116536^2 .

It is a cyclic number.

It is not a de Polignac number, because 10136621015321 - 2¹⁰ = 10136621014297 is a prime.

It is not a weakly prime, because it can be changed into another prime (10136621015341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5068310507660 + 5068310507661.

It is an arithmetic number, because the mean of its divisors is an integer number (5068310507661).

Almost surely, 2^{10136621015321} is an apocalyptic number.

It is an amenable number.

10136621015321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10136621015321 is an equidigital number, since it uses as much as digits as its factorization.

10136621015321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 10136621015321 its reverse (12351012663101), we get a palindrome (22487633678422).

The spelling of 10136621015321 in words is "ten trillion, one hundred thirty-six billion, six hundred twenty-one million, fifteen thousand, three hundred twenty-one".