10561138843403 has 2 divisors, whose sum is σ = 10561138843404. Its totient is φ = 10561138843402.

The previous prime is 10561138843351. The next prime is 10561138843433. The reversal of 10561138843403 is 30434883116501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10561138843403 - 2¹⁶ = 10561138777867 is a prime.

It is a super-2 number, since 2×10561138843403² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10561138843433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280569421701 + 5280569421702.

It is an arithmetic number, because the mean of its divisors is an integer number (5280569421702).

Almost surely, 2^{10561138843403} is an apocalyptic number.

10561138843403 is a deficient number, since it is larger than the sum of its proper divisors (1).

10561138843403 is an equidigital number, since it uses as much as digits as its factorization.

10561138843403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 10561138843403 in words is "ten trillion, five hundred sixty-one billion, one hundred thirty-eight million, eight hundred forty-three thousand, four hundred three".