111552172107 has 48 divisors (see below), whose sum is σ = 158924731680. Its totient is φ = 69583878144.

The previous prime is 111552172103. The next prime is 111552172111. The reversal of 111552172107 is 701271255111.

It is an interprime number because it is at equal distance from previous prime (111552172103) and next prime (111552172111).

It is not a de Polignac number, because 111552172107 - 2² = 111552172103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111552172103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41669253 + ... + 41671929.

It is an arithmetic number, because the mean of its divisors is an integer number (3310931910).

Almost surely, 2^111552172107 is an apocalyptic number.

111552172107 is a deficient number, since it is larger than the sum of its proper divisors (47372559573).

111552172107 is a wasteful number, since it uses less digits than its factorization.

111552172107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180 (or 3161 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 33.

The spelling of 111552172107 in words is "one hundred eleven billion, five hundred fifty-two million, one hundred seventy-two thousand, one hundred seven".