10805143061 has 4 divisors (see below), whose sum is σ = 10805583852. Its totient is φ = 10804702272.

The previous prime is 10805143057. The next prime is 10805143091. The reversal of 10805143061 is 16034150801.

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 10346754961 + 458388100 = 101719^2 + 21410^2 .

It is a cyclic number.

It is not a de Polignac number, because 10805143061 - 2² = 10805143057 is a prime.

It is a super-2 number, since 2×10805143061² (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 (10805143001) 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, 181316 + ... + 233421.

It is an arithmetic number, because the mean of its divisors is an integer number (2701395963).

Almost surely, 2^10805143061 is an apocalyptic number.

It is an amenable number.

10805143061 is a deficient number, since it is larger than the sum of its proper divisors (440791).

10805143061 is an equidigital number, since it uses as much as digits as its factorization.

10805143061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440790.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 10805143061 its reverse (16034150801), we get a palindrome (26839293862).

The spelling of 10805143061 in words is "ten billion, eight hundred five million, one hundred forty-three thousand, sixty-one".