11431533512 has 32 divisors (see below), whose sum is σ = 24500836800. Its totient is φ = 4898289984.

The previous prime is 11431533511. The next prime is 11431533523. The reversal of 11431533512 is 21533513411.

It is not an unprimeable number, because it can be changed into a prime (11431533511) 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, 330914 + ... + 363822.

It is an arithmetic number, because the mean of its divisors is an integer number (765651150).

Almost surely, 2^11431533512 is an apocalyptic number.

It is an amenable number.

11431533512 is an abundant number, since it is smaller than the sum of its proper divisors (13069303288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11431533512 is a wasteful number, since it uses less digits than its factorization.

11431533512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39125 (or 39121 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The spelling of 11431533512 in words is "eleven billion, four hundred thirty-one million, five hundred thirty-three thousand, five hundred twelve".