12005231401 has 2 divisors, whose sum is σ = 12005231402. Its totient is φ = 12005231400.

The previous prime is 12005231389. The next prime is 12005231467. The reversal of 12005231401 is 10413250021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10249537600 + 1755693801 = 101240^2 + 41901^2 .

It is a cyclic number.

It is not a de Polignac number, because 12005231401 - 2²⁹ = 11468360489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12005231201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002615700 + 6002615701.

It is an arithmetic number, because the mean of its divisors is an integer number (6002615701).

Almost surely, 2^12005231401 is an apocalyptic number.

It is an amenable number.

12005231401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005231401 is an equidigital number, since it uses as much as digits as its factorization.

12005231401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 12005231401 its reverse (10413250021), we get a palindrome (22418481422).

The spelling of 12005231401 in words is "twelve billion, five million, two hundred thirty-one thousand, four hundred one".