131421144009 has 16 divisors (see below), whose sum is σ = 182921766912. Its totient is φ = 83770431888.

The previous prime is 131421143999. The next prime is 131421144077. The reversal of 131421144009 is 900441124131.

It is not a de Polignac number, because 131421144009 - 2⁷ = 131421143881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131421144079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220339 + ... + 558024.

It is an arithmetic number, because the mean of its divisors is an integer number (11432610432).

Almost surely, 2^131421144009 is an apocalyptic number.

It is an amenable number.

131421144009 is a deficient number, since it is larger than the sum of its proper divisors (51500622903).

131421144009 is a wasteful number, since it uses less digits than its factorization.

131421144009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780836.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 131421144009 in words is "one hundred thirty-one billion, four hundred twenty-one million, one hundred forty-four thousand, nine".