12031204104511 has 4 divisors (see below), whose sum is σ = 12031490446992. Its totient is φ = 12030917762032.

The previous prime is 12031204104503. The next prime is 12031204104523. The reversal of 12031204104511 is 11540140213021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12031204104511 - 2³ = 12031204104503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031204104571) 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, 143108206 + ... + 143192251.

It is an arithmetic number, because the mean of its divisors is an integer number (3007872611748).

Almost surely, 2^{12031204104511} is an apocalyptic number.

12031204104511 is a deficient number, since it is larger than the sum of its proper divisors (286342481).

12031204104511 is an equidigital number, since it uses as much as digits as its factorization.

12031204104511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286342480.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 12031204104511 its reverse (11540140213021), we get a palindrome (23571344317532).

The spelling of 12031204104511 in words is "twelve trillion, thirty-one billion, two hundred four million, one hundred four thousand, five hundred eleven".