12020402344 has 16 divisors (see below), whose sum is σ = 22558929120. Its totient is φ = 6004687920.

The previous prime is 12020402341. The next prime is 12020402351. The reversal of 12020402344 is 44320402021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12020402341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679884 + ... + 697339.

It is an arithmetic number, because the mean of its divisors is an integer number (1409933070).

Almost surely, 2^12020402344 is an apocalyptic number.

It is an amenable number.

12020402344 is a deficient number, since it is larger than the sum of its proper divisors (10538526776).

12020402344 is a wasteful number, since it uses less digits than its factorization.

12020402344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378320 (or 1378316 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12020402344 its reverse (44320402021), we get a palindrome (56340804365).

The spelling of 12020402344 in words is "twelve billion, twenty million, four hundred two thousand, three hundred forty-four".