12120343401 has 16 divisors (see below), whose sum is σ = 16194064320. Its totient is φ = 8063447040.

The previous prime is 12120343343. The next prime is 12120343421. The reversal of 12120343401 is 10434302121.

It is not a de Polignac number, because 12120343401 - 2⁹ = 12120342889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120343421) 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, 4102941 + ... + 4105893.

It is an arithmetic number, because the mean of its divisors is an integer number (1012129020).

Almost surely, 2^12120343401 is an apocalyptic number.

It is an amenable number.

12120343401 is a deficient number, since it is larger than the sum of its proper divisors (4073720919).

12120343401 is a wasteful number, since it uses less digits than its factorization.

12120343401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336.

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

Adding to 12120343401 its reverse (10434302121), we get a palindrome (22554645522).

The spelling of 12120343401 in words is "twelve billion, one hundred twenty million, three hundred forty-three thousand, four hundred one".