131021021344223 has 16 divisors (see below), whose sum is σ = 140972070629376. Its totient is φ = 121451501556000.

The previous prime is 131021021344219. The next prime is 131021021344231. The reversal of 131021021344223 is 322443120120131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131021021344223 - 2² = 131021021344219 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 (131021021349223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306482111 + ... + 306909312.

It is an arithmetic number, because the mean of its divisors is an integer number (8810754414336).

Almost surely, 2^{131021021344223} is an apocalyptic number.

131021021344223 is a deficient number, since it is larger than the sum of its proper divisors (9951049285153).

131021021344223 is a wasteful number, since it uses less digits than its factorization.

131021021344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613391734.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131021021344223 its reverse (322443120120131), we get a palindrome (453464141464354).

The spelling of 131021021344223 in words is "one hundred thirty-one trillion, twenty-one billion, twenty-one million, three hundred forty-four thousand, two hundred twenty-three".