10510563121 has 4 divisors (see below), whose sum is σ = 10510782244. Its totient is φ = 10510344000.

The previous prime is 10510563103. The next prime is 10510563131. The reversal of 10510563121 is 12136501501.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5050092096 + 5460471025 = 71064^2 + 73895^2 .

It is a cyclic number.

It is not a de Polignac number, because 10510563121 - 2¹⁵ = 10510530353 is a prime.

It is a super-2 number, since 2×10510563121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10510563131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3180 + ... + 145021.

It is an arithmetic number, because the mean of its divisors is an integer number (2627695561).

Almost surely, 2^10510563121 is an apocalyptic number.

It is an amenable number.

10510563121 is a deficient number, since it is larger than the sum of its proper divisors (219123).

10510563121 is an equidigital number, since it uses as much as digits as its factorization.

10510563121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219122.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 10510563121 in words is "ten billion, five hundred ten million, five hundred sixty-three thousand, one hundred twenty-one".