11131480 has 64 divisors (see below), whose sum is σ = 26542080. Its totient is φ = 4195200.

The previous prime is 11131469. The next prime is 11131493. The reversal of 11131480 is 8413111.

11131480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58185 + ... + 58375.

It is an arithmetic number, because the mean of its divisors is an integer number (414720).

Almost surely, 2^11131480 is an apocalyptic number.

11131480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11131480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13271040).

11131480 is an abundant number, since it is smaller than the sum of its proper divisors (15410600).

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

11131480 is a wasteful number, since it uses less digits than its factorization.

11131480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11131480 is about 3336.3872676894. The cubic root of 11131480 is about 223.2805895100.

Adding to 11131480 its reverse (8413111), we get a palindrome (19544591).

It can be divided in two parts, 11131 and 480, that added together give a palindrome (11611).

The spelling of 11131480 in words is "eleven million, one hundred thirty-one thousand, four hundred eighty".