12011231031201 has 48 divisors (see below), whose sum is σ = 18274528807680. Its totient is φ = 7795008898560.

The previous prime is 12011231031169. The next prime is 12011231031259. The reversal of 12011231031201 is 10213013211021.

12011231031201 is a `hidden beast` number, since 1 + 201 + 1 + 231 + 0 + 31 + 201 = 666.

12011231031201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011231031201 - 2⁵ = 12011231031169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011231031101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15109080 + ... + 15884166.

It is an arithmetic number, because the mean of its divisors is an integer number (380719350160).

Almost surely, 2^{12011231031201} is an apocalyptic number.

It is an amenable number.

12011231031201 is a deficient number, since it is larger than the sum of its proper divisors (6263297776479).

12011231031201 is an frugal number, since it uses more digits than its factorization.

12011231031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775351 (or 775248 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12011231031201 its reverse (10213013211021), we get a palindrome (22224244242222).

The spelling of 12011231031201 in words is "twelve trillion, eleven billion, two hundred thirty-one million, thirty-one thousand, two hundred one".