111686401523 has 8 divisors (see below), whose sum is σ = 116551584288. Its totient is φ = 106821989824.

The previous prime is 111686401487. The next prime is 111686401529. The reversal of 111686401523 is 325104686111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111686401523 - 2¹⁰ = 111686400499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111686401529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113615 + ... + 486087.

It is an arithmetic number, because the mean of its divisors is an integer number (14568948036).

Almost surely, 2^111686401523 is an apocalyptic number.

111686401523 is a deficient number, since it is larger than the sum of its proper divisors (4865182765).

111686401523 is a wasteful number, since it uses less digits than its factorization.

111686401523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385533.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 111686401523 in words is "one hundred eleven billion, six hundred eighty-six million, four hundred one thousand, five hundred twenty-three".