1123532011 has 8 divisors (see below), whose sum is σ = 1284240384. Its totient is φ = 962874600.

The previous prime is 1123532009. The next prime is 1123532021. The reversal of 1123532011 is 1102353211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123532011 - 2¹ = 1123532009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123532011.

It is not an unprimeable number, because it can be changed into a prime (1123532021) 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, 72936 + ... + 86986.

It is an arithmetic number, because the mean of its divisors is an integer number (160530048).

Almost surely, 2^1123532011 is an apocalyptic number.

1123532011 is a deficient number, since it is larger than the sum of its proper divisors (160708373).

1123532011 is a wasteful number, since it uses less digits than its factorization.

1123532011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25481.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1123532011 is about 33519.1290310473. The cubic root of 1123532011 is about 1039.5893382960.

Adding to 1123532011 its reverse (1102353211), we get a palindrome (2225885222).

The spelling of 1123532011 in words is "one billion, one hundred twenty-three million, five hundred thirty-two thousand, eleven".