11543012 has 24 divisors (see below), whose sum is σ = 22221696. Its totient is φ = 5213088.

The previous prime is 11543011. The next prime is 11543023. The reversal of 11543012 is 21034511.

It is a super-2 number, since 2×11543012² = 266482252064288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11543011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83 + ... + 4805.

It is an arithmetic number, because the mean of its divisors is an integer number (925904).

Almost surely, 2^11543012 is an apocalyptic number.

It is an amenable number.

11543012 is a deficient number, since it is larger than the sum of its proper divisors (10678684).

11543012 is a wasteful number, since it uses less digits than its factorization.

11543012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787 (or 4785 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11543012 is about 3397.5008462103. The cubic root of 11543012 is about 225.9989296945.

Adding to 11543012 its reverse (21034511), we get a palindrome (32577523).

The spelling of 11543012 in words is "eleven million, five hundred forty-three thousand, twelve".