111331220915 has 8 divisors (see below), whose sum is σ = 135479119968. Its totient is φ = 87810540160.

The previous prime is 111331220909. The next prime is 111331220927. The reversal of 111331220915 is 519022133111.

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

It is not a de Polignac number, because 111331220915 - 2⁸ = 111331220659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156804182 + ... + 156804891.

It is an arithmetic number, because the mean of its divisors is an integer number (16934889996).

Almost surely, 2^111331220915 is an apocalyptic number.

111331220915 is a deficient number, since it is larger than the sum of its proper divisors (24147899053).

111331220915 is an equidigital number, since it uses as much as digits as its factorization.

111331220915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313609149.

The product of its (nonzero) digits is 1620, while the sum is 29.

The spelling of 111331220915 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred twenty thousand, nine hundred fifteen".