12131244401 has 8 divisors (see below), whose sum is σ = 12438728064. Its totient is φ = 11825818000.

The previous prime is 12131244397. The next prime is 12131244439. The reversal of 12131244401 is 10444213121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12131244401 - 2² = 12131244397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131244481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502370 + ... + 525963.

It is an arithmetic number, because the mean of its divisors is an integer number (1554841008).

Almost surely, 2^12131244401 is an apocalyptic number.

It is an amenable number.

12131244401 is a deficient number, since it is larger than the sum of its proper divisors (307483663).

12131244401 is a wasteful number, since it uses less digits than its factorization.

12131244401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028631.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12131244401 its reverse (10444213121), we get a palindrome (22575457522).

The spelling of 12131244401 in words is "twelve billion, one hundred thirty-one million, two hundred forty-four thousand, four hundred one".