131131413021 has 16 divisors (see below), whose sum is σ = 200699564544. Its totient is φ = 74602135344.

The previous prime is 131131413013. The next prime is 131131413037. The reversal of 131131413021 is 120314131131.

It is not a de Polignac number, because 131131413021 - 2³ = 131131413013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131433021) 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, 13749315 + ... + 13758848.

It is an arithmetic number, because the mean of its divisors is an integer number (12543722784).

Almost surely, 2^131131413021 is an apocalyptic number.

It is an amenable number.

131131413021 is a deficient number, since it is larger than the sum of its proper divisors (69568151523).

131131413021 is a wasteful number, since it uses less digits than its factorization.

131131413021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27508400.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131131413021 its reverse (120314131131), we get a palindrome (251445544152).

The spelling of 131131413021 in words is "one hundred thirty-one billion, one hundred thirty-one million, four hundred thirteen thousand, twenty-one".