1113315161 has 16 divisors (see below), whose sum is σ = 1328692224. Its totient is φ = 912084624.

The previous prime is 1113315157. The next prime is 1113315167. The reversal of 1113315161 is 1615133111.

It is a cyclic number.

It is not a de Polignac number, because 1113315161 - 2² = 1113315157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113315167) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 395786 + ... + 398588.

It is an arithmetic number, because the mean of its divisors is an integer number (83043264).

Almost surely, 2^1113315161 is an apocalyptic number.

It is an amenable number.

1113315161 is a deficient number, since it is larger than the sum of its proper divisors (215377063).

1113315161 is a wasteful number, since it uses less digits than its factorization.

1113315161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300.

The product of its digits is 270, while the sum is 23.

The square root of 1113315161 is about 33366.3777027115. The cubic root of 1113315161 is about 1036.4285658628.

Adding to 1113315161 its reverse (1615133111), we get a palindrome (2728448272).

The spelling of 1113315161 in words is "one billion, one hundred thirteen million, three hundred fifteen thousand, one hundred sixty-one".