111521055355 has 8 divisors (see below), whose sum is σ = 133848627552. Its totient is φ = 89201270208.

The previous prime is 111521055329. The next prime is 111521055367. The reversal of 111521055355 is 553550125111.

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 111521055355 - 2²³ = 111512666747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111521055355.

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, 1915207 + ... + 1972576.

It is an arithmetic number, because the mean of its divisors is an integer number (16731078444).

Almost surely, 2^111521055355 is an apocalyptic number.

111521055355 is a deficient number, since it is larger than the sum of its proper divisors (22327572197).

111521055355 is an equidigital number, since it uses as much as digits as its factorization.

111521055355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893525.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 111521055355 in words is "one hundred eleven billion, five hundred twenty-one million, fifty-five thousand, three hundred fifty-five".