10781777231 has 2 divisors, whose sum is σ = 10781777232. Its totient is φ = 10781777230.

The previous prime is 10781777197. The next prime is 10781777243. The reversal of 10781777231 is 13277718701.

10781777231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10781777231 - 2¹⁰ = 10781776207 is a prime.

It is a super-2 number, since 2×10781777231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10781777261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5390888615 + 5390888616.

It is an arithmetic number, because the mean of its divisors is an integer number (5390888616).

Almost surely, 2^10781777231 is an apocalyptic number.

10781777231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10781777231 is an equidigital number, since it uses as much as digits as its factorization.

10781777231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115248, while the sum is 44.

The spelling of 10781777231 in words is "ten billion, seven hundred eighty-one million, seven hundred seventy-seven thousand, two hundred thirty-one".