10530821237 has 2 divisors, whose sum is σ = 10530821238. Its totient is φ = 10530821236.

The previous prime is 10530821221. The next prime is 10530821263. The reversal of 10530821237 is 73212803501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5617652401 + 4913168836 = 74951^2 + 70094^2 .

It is a cyclic number.

It is not a de Polignac number, because 10530821237 - 2⁴ = 10530821221 is a prime.

It is a super-2 number, since 2×10530821237² (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 (10530824237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265410618 + 5265410619.

It is an arithmetic number, because the mean of its divisors is an integer number (5265410619).

Almost surely, 2^10530821237 is an apocalyptic number.

It is an amenable number.

10530821237 is a deficient number, since it is larger than the sum of its proper divisors (1).

10530821237 is an equidigital number, since it uses as much as digits as its factorization.

10530821237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 10530821237 in words is "ten billion, five hundred thirty million, eight hundred twenty-one thousand, two hundred thirty-seven".