11231380 has 24 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 4461600.

The previous prime is 11231377. The next prime is 11231399. The reversal of 11231380 is 8313211.

It is a super-2 number, since 2×11231380² = 252287793408800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161 + ... + 4879.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^11231380 is an apocalyptic number.

11231380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231380 is an abundant number, since it is smaller than the sum of its proper divisors (12517100).

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

11231380 is a wasteful number, since it uses less digits than its factorization.

11231380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11231380 is about 3351.3251110568. The cubic root of 11231380 is about 223.9465486834.

Adding to 11231380 its reverse (8313211), we get a palindrome (19544591).

It can be divided in two parts, 11231 and 380, that added together give a palindrome (11611).

The spelling of 11231380 in words is "eleven million, two hundred thirty-one thousand, three hundred eighty".