131201421023021 has 24 divisors (see below), whose sum is σ = 141031550884224. Its totient is φ = 122019546919680.

The previous prime is 131201421022999. The next prime is 131201421023069. The reversal of 131201421023021 is 120320124102131.

It is not a de Polignac number, because 131201421023021 - 2¹⁴ = 131201421006637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201421025021) 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, 8942096 + ... + 18503078.

It is an arithmetic number, because the mean of its divisors is an integer number (5876314620176).

Almost surely, 2^{131201421023021} is an apocalyptic number.

It is an amenable number.

131201421023021 is a deficient number, since it is larger than the sum of its proper divisors (9830129861203).

131201421023021 is a wasteful number, since it uses less digits than its factorization.

131201421023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9561581 (or 9561564 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 131201421023021 its reverse (120320124102131), we get a palindrome (251521545125152).

The spelling of 131201421023021 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, twenty-three thousand, twenty-one".