12542350401 has 24 divisors (see below), whose sum is σ = 20719175360. Its totient is φ = 7162092576.

The previous prime is 12542350397. The next prime is 12542350417. The reversal of 12542350401 is 10405324521.

12542350401 is a `hidden beast` number, since 1 + 25 + 4 + 235 + 0 + 401 = 666.

It is not a de Polignac number, because 12542350401 - 2² = 12542350397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542350451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23691 + ... + 160143.

Almost surely, 2^12542350401 is an apocalyptic number.

It is an amenable number.

12542350401 is a deficient number, since it is larger than the sum of its proper divisors (8176824959).

12542350401 is a wasteful number, since it uses less digits than its factorization.

12542350401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137925 (or 137922 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12542350401 its reverse (10405324521), we get a palindrome (22947674922).

The spelling of 12542350401 in words is "twelve billion, five hundred forty-two million, three hundred fifty thousand, four hundred one".