10168781431 has 2 divisors, whose sum is σ = 10168781432. Its totient is φ = 10168781430.

The previous prime is 10168781429. The next prime is 10168781443. The reversal of 10168781431 is 13418786101.

10168781431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10168781431 - 2¹ = 10168781429 is a prime.

It is a super-2 number, since 2×10168781431² (a number of 21 digits) contains 22 as substring.

Together with 10168781429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10168781401) 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 as a sum of consecutive naturals, namely, 5084390715 + 5084390716.

It is an arithmetic number, because the mean of its divisors is an integer number (5084390716).

Almost surely, 2^10168781431 is an apocalyptic number.

10168781431 is a deficient number, since it is larger than the sum of its proper divisors (1).

10168781431 is an equidigital number, since it uses as much as digits as its factorization.

10168781431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 10168781431 in words is "ten billion, one hundred sixty-eight million, seven hundred eighty-one thousand, four hundred thirty-one".