12120541230231 has 32 divisors (see below), whose sum is σ = 21728701370880. Its totient is φ = 6518610407808.

The previous prime is 12120541230227. The next prime is 12120541230251. The reversal of 12120541230231 is 13203214502121.

It is a happy number.

12120541230231 is a `hidden beast` number, since 1 + 2 + 12 + 0 + 5 + 412 + 3 + 0 + 231 = 666.

It is not a de Polignac number, because 12120541230231 - 2² = 12120541230227 is a prime.

It is a super-2 number, since 2×12120541230231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12120541230195 and 12120541230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120541230221) 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, 1886168781 + ... + 1886175206.

It is an arithmetic number, because the mean of its divisors is an integer number (679021917840).

Almost surely, 2^{12120541230231} is an apocalyptic number.

12120541230231 is a deficient number, since it is larger than the sum of its proper divisors (9608160140649).

12120541230231 is a wasteful number, since it uses less digits than its factorization.

12120541230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772344020 (or 3772344014 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 12120541230231 its reverse (13203214502121), we get a palindrome (25323755732352).

The spelling of 12120541230231 in words is "twelve trillion, one hundred twenty billion, five hundred forty-one million, two hundred thirty thousand, two hundred thirty-one".