111641368 has 16 divisors (see below), whose sum is σ = 209576880. Its totient is φ = 55754208.

The previous prime is 111641347. The next prime is 111641389. The reversal of 111641368 is 863146111.

It is an interprime number because it is at equal distance from previous prime (111641347) and next prime (111641389).

It is a super-2 number, since 2×111641368² = 24927590097822848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771 + ... + 14962.

It is an arithmetic number, because the mean of its divisors is an integer number (13098555).

Almost surely, 2^111641368 is an apocalyptic number.

It is an amenable number.

111641368 is a deficient number, since it is larger than the sum of its proper divisors (97935512).

111641368 is a wasteful number, since it uses less digits than its factorization.

111641368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16626 (or 16622 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 111641368 is about 10566.0478893482. The cubic root of 111641368 is about 481.5134061923.

Adding to 111641368 its reverse (863146111), we get a palindrome (974787479).

The spelling of 111641368 in words is "one hundred eleven million, six hundred forty-one thousand, three hundred sixty-eight".