131201213111 has 8 divisors (see below), whose sum is σ = 133683800544. Its totient is φ = 128718888480.

The previous prime is 131201213093. The next prime is 131201213167. The reversal of 131201213111 is 111312102131.

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-131201213111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131201213111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201213411) 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, 1154501 + ... + 1263041.

It is an arithmetic number, because the mean of its divisors is an integer number (16710475068).

Almost surely, 2^131201213111 is an apocalyptic number.

131201213111 is a deficient number, since it is larger than the sum of its proper divisors (2482587433).

131201213111 is a wasteful number, since it uses less digits than its factorization.

131201213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131401.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 131201213111 its reverse (111312102131), we get a palindrome (242513315242).

The spelling of 131201213111 in words is "one hundred thirty-one billion, two hundred one million, two hundred thirteen thousand, one hundred eleven".