11103132312 has 48 divisors (see below), whose sum is σ = 30120642240. Its totient is φ = 3694932288.

The previous prime is 11103132281. The next prime is 11103132323. The reversal of 11103132312 is 21323130111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83323 + ... + 170730.

It is an arithmetic number, because the mean of its divisors is an integer number (627513380).

Almost surely, 2^11103132312 is an apocalyptic number.

11103132312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11103132312 is an abundant number, since it is smaller than the sum of its proper divisors (19017509928).

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

11103132312 is a wasteful number, since it uses less digits than its factorization.

11103132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254672 (or 254665 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11103132312 its reverse (21323130111), we get a palindrome (32426262423).

The spelling of 11103132312 in words is "eleven billion, one hundred three million, one hundred thirty-two thousand, three hundred twelve".