12420334101 has 32 divisors (see below), whose sum is σ = 19306045440. Its totient is φ = 6956217216.

The previous prime is 12420334081. The next prime is 12420334111. The reversal of 12420334101 is 10143302421.

It is not a de Polignac number, because 12420334101 - 2¹⁴ = 12420317717 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420334111) 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, 199960 + ... + 254606.

It is an arithmetic number, because the mean of its divisors is an integer number (603313920).

Almost surely, 2^12420334101 is an apocalyptic number.

It is an amenable number.

12420334101 is a deficient number, since it is larger than the sum of its proper divisors (6885711339).

12420334101 is a wasteful number, since it uses less digits than its factorization.

12420334101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54873.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12420334101 its reverse (10143302421), we get a palindrome (22563636522).

The spelling of 12420334101 in words is "twelve billion, four hundred twenty million, three hundred thirty-four thousand, one hundred one".