11533531411 has 4 divisors (see below), whose sum is σ = 12140559400. Its totient is φ = 10926503424.

The previous prime is 11533531379. The next prime is 11533531441. The reversal of 11533531411 is 11413533511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11533531411 - 2⁵ = 11533531379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11533531411.

It is not an unprimeable number, because it can be changed into a prime (11533531441) 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, 303513966 + ... + 303514003.

It is an arithmetic number, because the mean of its divisors is an integer number (3035139850).

Almost surely, 2^11533531411 is an apocalyptic number.

11533531411 is a deficient number, since it is larger than the sum of its proper divisors (607027989).

11533531411 is an equidigital number, since it uses as much as digits as its factorization.

11533531411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607027988.

The product of its digits is 2700, while the sum is 28.

The spelling of 11533531411 in words is "eleven billion, five hundred thirty-three million, five hundred thirty-one thousand, four hundred eleven".