1113030161 has 4 divisors (see below), whose sum is σ = 1113268800. Its totient is φ = 1112791524.

The previous prime is 1113030109. The next prime is 1113030223. The reversal of 1113030161 is 1610303111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1113030161 - 2⁶ = 1113030097 is a prime.

It is a super-2 number, since 2×1113030161² = 2477672278591371842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1113032161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112181 + ... + 121698.

It is an arithmetic number, because the mean of its divisors is an integer number (278317200).

Almost surely, 2^1113030161 is an apocalyptic number.

It is an amenable number.

1113030161 is a deficient number, since it is larger than the sum of its proper divisors (238639).

1113030161 is an equidigital number, since it uses as much as digits as its factorization.

1113030161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238638.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1113030161 is about 33362.1066630991. The cubic root of 1113030161 is about 1036.3401191048.

Adding to 1113030161 its reverse (1610303111), we get a palindrome (2723333272).

The spelling of 1113030161 in words is "one billion, one hundred thirteen million, thirty thousand, one hundred sixty-one".