131201421001001 has 64 divisors (see below), whose sum is σ = 150717159129600. Its totient is φ = 113330317363200.

The previous prime is 131201421000973. The next prime is 131201421001003. The reversal of 131201421001001 is 100100124102131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131201421001001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201421001003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4617965486 + ... + 4617993896.

It is an arithmetic number, because the mean of its divisors is an integer number (2354955611400).

Almost surely, 2^{131201421001001} is an apocalyptic number.

It is an amenable number.

131201421001001 is a deficient number, since it is larger than the sum of its proper divisors (19515738128599).

131201421001001 is a wasteful number, since it uses less digits than its factorization.

131201421001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30450.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131201421001001 its reverse (100100124102131), we get a palindrome (231301545103132).

The spelling of 131201421001001 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, one thousand, one".