111368370961 has 3 divisors (see below), whose sum is σ = 111368704681. Its totient is φ = 111368037242.

The previous prime is 111368370941. The next prime is 111368370977. The reversal of 111368370961 is 169073863111.

The square root of 111368370961 is 333719.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 169073863111 = 374333 ⋅451667.

It is not a de Polignac number, because 111368370961 - 2²³ = 111359982353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111368370941) 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 in 2 ways as a sum of consecutive naturals, for example, 166860 + ... + 500578.

Almost surely, 2^111368370961 is an apocalyptic number.

111368370961 is the 333719-th square number.

111368370961 is the 166860-th centered octagonal number.

It is an amenable number.

111368370961 is a deficient number, since it is larger than the sum of its proper divisors (333720).

111368370961 is an frugal number, since it uses more digits than its factorization.

111368370961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667438 (or 333719 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 111368370961 in words is "one hundred eleven billion, three hundred sixty-eight million, three hundred seventy thousand, nine hundred sixty-one".