10561061111051 has 4 divisors (see below), whose sum is σ = 11521157575704. Its totient is φ = 9600964646400.

The previous prime is 10561061111033. The next prime is 10561061111057. The reversal of 10561061111051 is 15011116016501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10561061111051 is a prime.

It is a super-2 number, since 2×10561061111051² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10561061111057) 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, 480048232310 + ... + 480048232331.

It is an arithmetic number, because the mean of its divisors is an integer number (2880289393926).

Almost surely, 2^{10561061111051} is an apocalyptic number.

10561061111051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10561061111051 is a deficient number, since it is larger than the sum of its proper divisors (960096464653).

10561061111051 is an equidigital number, since it uses as much as digits as its factorization.

10561061111051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960096464652.

The product of its (nonzero) digits is 900, while the sum is 29.

Adding to 10561061111051 its reverse (15011116016501), we get a palindrome (25572177127552).

The spelling of 10561061111051 in words is "ten trillion, five hundred sixty-one billion, sixty-one million, one hundred eleven thousand, fifty-one".