12312102 has 32 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 3692000.

The previous prime is 12312101. The next prime is 12312103. The reversal of 12312102 is 20121321.

It is an interprime number because it is at equal distance from previous prime (12312101) and next prime (12312103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5743 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (848232).

Almost surely, 2^12312102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13571712).

12312102 is an abundant number, since it is smaller than the sum of its proper divisors (14831322).

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

12312102 is a wasteful number, since it uses less digits than its factorization.

12312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12312102 is about 3508.8604987944. The cubic root of 12312102 is about 230.9107055407.

Adding to 12312102 its reverse (20121321), we get a palindrome (32433423).

It can be divided in two parts, 1231 and 2102, that added together give a palindrome (3333).

The spelling of 12312102 in words is "twelve million, three hundred twelve thousand, one hundred two".