12343031140 has 96 divisors (see below), whose sum is σ = 29514119040. Its totient is φ = 4296115200.

The previous prime is 12343031093. The next prime is 12343031147. The reversal of 12343031140 is 4113034321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12343031147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465151 + ... + 490969.

It is an arithmetic number, because the mean of its divisors is an integer number (307438740).

Almost surely, 2^12343031140 is an apocalyptic number.

12343031140 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 12343031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757059520).

12343031140 is an abundant number, since it is smaller than the sum of its proper divisors (17171087900).

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

12343031140 is a wasteful number, since it uses less digits than its factorization.

12343031140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933 (or 25931 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12343031140 its reverse (4113034321), we get a palindrome (16456065461).

The spelling of 12343031140 in words is "twelve billion, three hundred forty-three million, thirty-one thousand, one hundred forty".