10530820751 has 4 divisors (see below), whose sum is σ = 11488168104. Its totient is φ = 9573473400.

The previous prime is 10530820739. The next prime is 10530820759. The reversal of 10530820751 is 15702803501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10530820751 - 2¹⁸ = 10530558607 is a prime.

It is a super-2 number, since 2×10530820751² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10530820759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478673660 + ... + 478673681.

It is an arithmetic number, because the mean of its divisors is an integer number (2872042026).

Almost surely, 2^10530820751 is an apocalyptic number.

10530820751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10530820751 is a deficient number, since it is larger than the sum of its proper divisors (957347353).

10530820751 is an equidigital number, since it uses as much as digits as its factorization.

10530820751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957347352.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 10530820751 in words is "ten billion, five hundred thirty million, eight hundred twenty thousand, seven hundred fifty-one".