11103001312 has 48 divisors (see below), whose sum is σ = 23593323600. Its totient is φ = 5112963072.

The previous prime is 11103001237. The next prime is 11103001313. The reversal of 11103001312 is 21310030111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 11103001292 and 11103001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103001313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157063 + ... + 216505.

It is an arithmetic number, because the mean of its divisors is an integer number (491527575).

Almost surely, 2^11103001312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11103001312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11796661800).

11103001312 is an abundant number, since it is smaller than the sum of its proper divisors (12490322288).

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

11103001312 is a wasteful number, since it uses less digits than its factorization.

11103001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59915 (or 59907 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11103001312 its reverse (21310030111), we get a palindrome (32413031423).

The spelling of 11103001312 in words is "eleven billion, one hundred three million, one thousand, three hundred twelve".