111703565381 has 4 divisors (see below), whose sum is σ = 111947993772. Its totient is φ = 111459136992.

The previous prime is 111703565359. The next prime is 111703565383. The reversal of 111703565381 is 183565307111.

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 65502212356 + 46201353025 = 255934^2 + 214945^2 .

It is a cyclic number.

It is not a de Polignac number, because 111703565381 - 2¹⁴ = 111703548997 is a prime.

It is a super-2 number, since 2×111703565381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111703565383) 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, 122213510 + ... + 122214423.

It is an arithmetic number, because the mean of its divisors is an integer number (27986998443).

Almost surely, 2^111703565381 is an apocalyptic number.

It is an amenable number.

111703565381 is a deficient number, since it is larger than the sum of its proper divisors (244428391).

111703565381 is an equidigital number, since it uses as much as digits as its factorization.

111703565381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244428390.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 111703565381 in words is "one hundred eleven billion, seven hundred three million, five hundred sixty-five thousand, three hundred eighty-one".