111361061 has 4 divisors (see below), whose sum is σ = 127269792. Its totient is φ = 95452332.

The previous prime is 111361057. The next prime is 111361069. The reversal of 111361061 is 160163111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160163111 = 59 ⋅2714629.

It is a cyclic number.

It is not a de Polignac number, because 111361061 - 2² = 111361057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111361069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7954355 + ... + 7954368.

It is an arithmetic number, because the mean of its divisors is an integer number (31817448).

Almost surely, 2^111361061 is an apocalyptic number.

It is an amenable number.

111361061 is a deficient number, since it is larger than the sum of its proper divisors (15908731).

111361061 is an equidigital number, since it uses as much as digits as its factorization.

111361061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15908730.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 111361061 is about 10552.7750378751. The cubic root of 111361061 is about 481.1100769129.

The spelling of 111361061 in words is "one hundred eleven million, three hundred sixty-one thousand, sixty-one".