11312120 has 32 divisors (see below), whose sum is σ = 25552800. Its totient is φ = 4507008.

The previous prime is 11312111. The next prime is 11312177. The reversal of 11312120 is 2121311.

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, 15197 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (798525).

Almost surely, 2^11312120 is an apocalyptic number.

11312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312120 is an abundant number, since it is smaller than the sum of its proper divisors (14240680).

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

11312120 is a wasteful number, since it uses less digits than its factorization.

11312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11312120 is about 3363.3495209389. The cubic root of 11312120 is about 224.4819025661.

Adding to 11312120 its reverse (2121311), we get a palindrome (13433431).

The spelling of 11312120 in words is "eleven million, three hundred twelve thousand, one hundred twenty".