10130201821 has 2 divisors, whose sum is σ = 10130201822. Its totient is φ = 10130201820.

The previous prime is 10130201819. The next prime is 10130201831. The reversal of 10130201821 is 12810203101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8476884900 + 1653316921 = 92070^2 + 40661^2 .

It is a cyclic number.

It is not a de Polignac number, because 10130201821 - 2¹ = 10130201819 is a prime.

Together with 10130201819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10130201801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065100910 + 5065100911.

It is an arithmetic number, because the mean of its divisors is an integer number (5065100911).

Almost surely, 2^10130201821 is an apocalyptic number.

It is an amenable number.

10130201821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10130201821 is an equidigital number, since it uses as much as digits as its factorization.

10130201821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10130201821 its reverse (12810203101), we get a palindrome (22940404922).

The spelling of 10130201821 in words is "ten billion, one hundred thirty million, two hundred one thousand, eight hundred twenty-one".