1111001355 has 12 divisors (see below), whose sum is σ = 1925735760. Its totient is φ = 592534032.

The previous prime is 1111001347. The next prime is 1111001371. The reversal of 1111001355 is 5531001111.

It is not a de Polignac number, because 1111001355 - 2³ = 1111001347 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12344415 + ... + 12344504.

It is an arithmetic number, because the mean of its divisors is an integer number (160477980).

Almost surely, 2^1111001355 is an apocalyptic number.

1111001355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1111001355 is a deficient number, since it is larger than the sum of its proper divisors (814734405).

1111001355 is a wasteful number, since it uses less digits than its factorization.

1111001355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24688930 (or 24688927 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 18.

The square root of 1111001355 is about 33331.6869510080. The cubic root of 1111001355 is about 1035.7100637527.

Adding to 1111001355 its reverse (5531001111), we get a palindrome (6642002466).

The spelling of 1111001355 in words is "one billion, one hundred eleven million, one thousand, three hundred fifty-five".