11211331504 has 20 divisors (see below), whose sum is σ = 21725734464. Its totient is φ = 5604690368.

The previous prime is 11211331447. The next prime is 11211331507. The reversal of 11211331504 is 40513311211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11211331507) 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 3 ways as a sum of consecutive naturals, for example, 38814 + ... + 154690.

Almost surely, 2^11211331504 is an apocalyptic number.

It is an amenable number.

11211331504 is a deficient number, since it is larger than the sum of its proper divisors (10514402960).

11211331504 is a wasteful number, since it uses less digits than its factorization.

11211331504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121932 (or 121926 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11211331504 its reverse (40513311211), we get a palindrome (51724642715).

The spelling of 11211331504 in words is "eleven billion, two hundred eleven million, three hundred thirty-one thousand, five hundred four".