11131133312 has 32 divisors (see below), whose sum is σ = 23881100880. Its totient is φ = 5137445376.

The previous prime is 11131133309. The next prime is 11131133323. The reversal of 11131133312 is 21333113111.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343028 + ... + 3346355.

Almost surely, 2^11131133312 is an apocalyptic number.

It is an amenable number.

11131133312 is an abundant number, since it is smaller than the sum of its proper divisors (12749967568).

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

11131133312 is an equidigital number, since it uses as much as digits as its factorization.

11131133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689410 (or 6689398 counting only the distinct ones).

The product of its digits is 162, while the sum is 20.

Adding to 11131133312 its reverse (21333113111), we get a palindrome (32464246423).

The spelling of 11131133312 in words is "eleven billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred twelve".