131201310202121 has 8 divisors (see below), whose sum is σ = 134004299007744. Its totient is φ = 128398799378560.

The previous prime is 131201310202097. The next prime is 131201310202337. The reversal of 131201310202121 is 121202013102131.

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

It is not a de Polignac number, because 131201310202121 - 2¹⁰ = 131201310201097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131201310202093 and 131201310202102.

It is not an unprimeable number, because it can be changed into a prime (131201310292121) 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, 118940645 + ... + 120038658.

It is an arithmetic number, because the mean of its divisors is an integer number (16750537375968).

Almost surely, 2^{131201310202121} is an apocalyptic number.

It is an amenable number.

131201310202121 is a deficient number, since it is larger than the sum of its proper divisors (2802988805623).

131201310202121 is a wasteful number, since it uses less digits than its factorization.

131201310202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238991031.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131201310202121 its reverse (121202013102131), we get a palindrome (252403323304252).

The spelling of 131201310202121 in words is "one hundred thirty-one trillion, two hundred one billion, three hundred ten million, two hundred two thousand, one hundred twenty-one".