111201201705 has 64 divisors (see below), whose sum is σ = 198482006016. Its totient is φ = 52700544000.

The previous prime is 111201201701. The next prime is 111201201707. The reversal of 111201201705 is 507102102111.

It is not a de Polignac number, because 111201201705 - 2² = 111201201701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111201201701) 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 63 ways as a sum of consecutive naturals, for example, 6280465 + ... + 6298145.

It is an arithmetic number, because the mean of its divisors is an integer number (3101281344).

Almost surely, 2^111201201705 is an apocalyptic number.

111201201705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111201201705 is a deficient number, since it is larger than the sum of its proper divisors (87280804311).

111201201705 is a wasteful number, since it uses less digits than its factorization.

111201201705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558.

The product of its (nonzero) digits is 140, while the sum is 21.

Adding to 111201201705 its reverse (507102102111), we get a palindrome (618303303816).

The spelling of 111201201705 in words is "one hundred eleven billion, two hundred one million, two hundred one thousand, seven hundred five".