1135423011 has 16 divisors (see below), whose sum is σ = 1521622400. Its totient is φ = 753096960.

The previous prime is 1135423007. The next prime is 1135423021. The reversal of 1135423011 is 1103245311.

It is not a de Polignac number, because 1135423011 - 2² = 1135423007 is a prime.

It is a super-2 number, since 2×1135423011² = 2578370827816612242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135423021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667440 + ... + 669138.

It is an arithmetic number, because the mean of its divisors is an integer number (95101400).

Almost surely, 2^1135423011 is an apocalyptic number.

1135423011 is a deficient number, since it is larger than the sum of its proper divisors (386199389).

1135423011 is a wasteful number, since it uses less digits than its factorization.

1135423011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1135423011 is about 33696.0385060321. The cubic root of 1135423011 is about 1043.2440037455.

Adding to 1135423011 its reverse (1103245311), we get a palindrome (2238668322).

The spelling of 1135423011 in words is "one billion, one hundred thirty-five million, four hundred twenty-three thousand, eleven".