111031105361 has 12 divisors (see below), whose sum is σ = 122086771716. Its totient is φ = 100900715520.

The previous prime is 111031105351. The next prime is 111031105369. The reversal of 111031105361 is 163501130111.

It can be written as a sum of positive squares in 2 ways, for example, as 66907582225 + 44123523136 = 258665^2 + 210056^2 .

It is not a de Polignac number, because 111031105361 - 2¹⁴ = 111031088977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111031105369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170801 + ... + 501233.

It is an arithmetic number, because the mean of its divisors is an integer number (10173897643).

Almost surely, 2^111031105361 is an apocalyptic number.

111031105361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111031105361 is a deficient number, since it is larger than the sum of its proper divisors (11055666355).

111031105361 is a wasteful number, since it uses less digits than its factorization.

111031105361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333232 (or 333221 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 23.

Adding to 111031105361 its reverse (163501130111), we get a palindrome (274532235472).

The spelling of 111031105361 in words is "one hundred eleven billion, thirty-one million, one hundred five thousand, three hundred sixty-one".