1161423035 has 4 divisors (see below), whose sum is σ = 1393707648. Its totient is φ = 929138424.

The previous prime is 1161422987. The next prime is 1161423037. The reversal of 1161423035 is 5303241611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5303241611 = 2153 ⋅2463187.

It is a cyclic number.

It is not a de Polignac number, because 1161423035 - 2⁶ = 1161422971 is a prime.

It is a super-2 number, since 2×1161423035² = 2697806932457222450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161422995 and 1161423013.

It is not an unprimeable number, because it can be changed into a prime (1161423037) 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 3 ways as a sum of consecutive naturals, for example, 116142299 + ... + 116142308.

It is an arithmetic number, because the mean of its divisors is an integer number (348426912).

Almost surely, 2^1161423035 is an apocalyptic number.

1161423035 is a deficient number, since it is larger than the sum of its proper divisors (232284613).

1161423035 is an equidigital number, since it uses as much as digits as its factorization.

1161423035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232284612.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1161423035 is about 34079.6572019145. The cubic root of 1161423035 is about 1051.1470563613.

Adding to 1161423035 its reverse (5303241611), we get a palindrome (6464664646).

The spelling of 1161423035 in words is "one billion, one hundred sixty-one million, four hundred twenty-three thousand, thirty-five".