131423142212021 has 8 divisors (see below), whose sum is σ = 143370957369024. Its totient is φ = 119475369850720.

The previous prime is 131423142212003. The next prime is 131423142212051. The reversal of 131423142212021 is 120212241324131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131423142212021 - 2¹⁸ = 131423141949877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423142212051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4100945 + ... + 16723158.

It is an arithmetic number, because the mean of its divisors is an integer number (17921369671128).

Almost surely, 2^{131423142212021} is an apocalyptic number.

131423142212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131423142212021 is a deficient number, since it is larger than the sum of its proper divisors (11947815157003).

131423142212021 is a wasteful number, since it uses less digits than its factorization.

131423142212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21397851.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 131423142212021 its reverse (120212241324131), we get a palindrome (251635383536152).

The spelling of 131423142212021 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, one hundred forty-two million, two hundred twelve thousand, twenty-one".