11531033492 has 24 divisors (see below), whose sum is σ = 22105155072. Its totient is φ = 5219625600.

The previous prime is 11531033441. The next prime is 11531033497. The reversal of 11531033492 is 29433013511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531033497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533108 + ... + 554315.

It is an arithmetic number, because the mean of its divisors is an integer number (921048128).

Almost surely, 2^11531033492 is an apocalyptic number.

It is an amenable number.

11531033492 is a deficient number, since it is larger than the sum of its proper divisors (10574121580).

11531033492 is a wasteful number, since it uses less digits than its factorization.

11531033492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087679 (or 1087677 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 11531033492 in words is "eleven billion, five hundred thirty-one million, thirty-three thousand, four hundred ninety-two".