12011310 has 48 divisors (see below), whose sum is σ = 32082336. Its totient is φ = 3115584.

The previous prime is 12011309. The next prime is 12011317. The reversal of 12011310 is 1311021.

It is a super-2 number, since 2×12011310² = 288543135832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12011292 and 12011301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1527 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (668382).

Almost surely, 2^12011310 is an apocalyptic number.

12011310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16041168).

12011310 is an abundant number, since it is smaller than the sum of its proper divisors (20071026).

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

12011310 is a wasteful number, since it uses less digits than its factorization.

12011310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12011310 is about 3465.7336885572. The cubic root of 12011310 is about 229.0147521372.

Adding to 12011310 its reverse (1311021), we get a palindrome (13322331).

It can be divided in two parts, 12011 and 310, that added together give a palindrome (12321).

The spelling of 12011310 in words is "twelve million, eleven thousand, three hundred ten".