10321213181 has 2 divisors, whose sum is σ = 10321213182. Its totient is φ = 10321213180.

The previous prime is 10321213171. The next prime is 10321213219. The reversal of 10321213181 is 18131212301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7716744025 + 2604469156 = 87845^2 + 51034^2 .

It is an emirp because it is prime and its reverse (18131212301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10321213181 - 2³⁰ = 9247471357 is a prime.

It is a super-2 number, since 2×10321213181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10321213171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160606590 + 5160606591.

It is an arithmetic number, because the mean of its divisors is an integer number (5160606591).

Almost surely, 2^10321213181 is an apocalyptic number.

It is an amenable number.

10321213181 is a deficient number, since it is larger than the sum of its proper divisors (1).

10321213181 is an equidigital number, since it uses as much as digits as its factorization.

10321213181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 10321213181 its reverse (18131212301), we get a palindrome (28452425482).

The spelling of 10321213181 in words is "ten billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred eighty-one".