105719143381 has 2 divisors, whose sum is σ = 105719143382. Its totient is φ = 105719143380.

The previous prime is 105719143373. The next prime is 105719143427. The reversal of 105719143381 is 183341917501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101410402500 + 4308740881 = 318450^2 + 65641^2 .

It is a cyclic number.

It is not a de Polignac number, because 105719143381 - 2³ = 105719143373 is a prime.

It is a super-2 number, since 2×105719143381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105719143351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52859571690 + 52859571691.

It is an arithmetic number, because the mean of its divisors is an integer number (52859571691).

Almost surely, 2^105719143381 is an apocalyptic number.

It is an amenable number.

105719143381 is a deficient number, since it is larger than the sum of its proper divisors (1).

105719143381 is an equidigital number, since it uses as much as digits as its factorization.

105719143381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

It can be divided in two parts, 105719143 and 381, that added together give a square (105719524 = 10282²).

The spelling of 105719143381 in words is "one hundred five billion, seven hundred nineteen million, one hundred forty-three thousand, three hundred eighty-one".