131123043224021 has 8 divisors (see below), whose sum is σ = 131214912474240. Its totient is φ = 131031204951712.

The previous prime is 131123043224003. The next prime is 131123043224023. The reversal of 131123043224021 is 120422340321131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131123043224021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123043224023) 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, 727316 + ... + 16210338.

It is an arithmetic number, because the mean of its divisors is an integer number (16401864059280).

Almost surely, 2^{131123043224021} is an apocalyptic number.

It is an amenable number.

131123043224021 is a deficient number, since it is larger than the sum of its proper divisors (91869250219).

131123043224021 is a wasteful number, since it uses less digits than its factorization.

131123043224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15488955.

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

Adding to 131123043224021 its reverse (120422340321131), we get a palindrome (251545383545152).

The spelling of 131123043224021 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, forty-three million, two hundred twenty-four thousand, twenty-one".