12040230342 has 64 divisors (see below), whose sum is σ = 27921890304. Its totient is φ = 3390197760.

The previous prime is 12040230329. The next prime is 12040230401. The reversal of 12040230342 is 24303204021.

It is a super-3 number, since 3×12040230342³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 975703 + ... + 987965.

It is an arithmetic number, because the mean of its divisors is an integer number (436279536).

Almost surely, 2^12040230342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12040230342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13960945152).

12040230342 is an abundant number, since it is smaller than the sum of its proper divisors (15881659962).

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

12040230342 is a wasteful number, since it uses less digits than its factorization.

12040230342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12613.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12040230342 its reverse (24303204021), we get a palindrome (36343434363).

The spelling of 12040230342 in words is "twelve billion, forty million, two hundred thirty thousand, three hundred forty-two".