1113511155 has 8 divisors (see below), whose sum is σ = 1781617872. Its totient is φ = 593872608.

The previous prime is 1113511127. The next prime is 1113511193. The reversal of 1113511155 is 5511153111.

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

It is not a de Polignac number, because 1113511155 - 2¹³ = 1113502963 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37117024 + ... + 37117053.

It is an arithmetic number, because the mean of its divisors is an integer number (222702234).

Almost surely, 2^1113511155 is an apocalyptic number.

1113511155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1113511155 is a deficient number, since it is larger than the sum of its proper divisors (668106717).

1113511155 is an equidigital number, since it uses as much as digits as its factorization.

1113511155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74234085.

The product of its digits is 375, while the sum is 24.

The square root of 1113511155 is about 33369.3145719237. The cubic root of 1113511155 is about 1036.4893817840.

Adding to 1113511155 its reverse (5511153111), we get a palindrome (6624664266).

The spelling of 1113511155 in words is "one billion, one hundred thirteen million, five hundred eleven thousand, one hundred fifty-five".