111309496851 has 16 divisors (see below), whose sum is σ = 169819593984. Its totient is φ = 63528505824.

The previous prime is 111309496817. The next prime is 111309496853. The reversal of 111309496851 is 158694903111.

It is not a de Polignac number, because 111309496851 - 2⁶ = 111309496787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111309496851.

It is not an unprimeable number, because it can be changed into a prime (111309496853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3187260 + ... + 3221993.

It is an arithmetic number, because the mean of its divisors is an integer number (10613724624).

Almost surely, 2^111309496851 is an apocalyptic number.

111309496851 is a deficient number, since it is larger than the sum of its proper divisors (58510097133).

111309496851 is an equidigital number, since it uses as much as digits as its factorization.

111309496851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410090.

The product of its (nonzero) digits is 233280, while the sum is 48.

The spelling of 111309496851 in words is "one hundred eleven billion, three hundred nine million, four hundred ninety-six thousand, eight hundred fifty-one".