131121120211 has 8 divisors (see below), whose sum is σ = 136060176384. Its totient is φ = 126267960840.

The previous prime is 131121120199. The next prime is 131121120259. The reversal of 131121120211 is 112021121131.

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 not a de Polignac number, because 131121120211 - 2⁹ = 131121119699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131121120281) 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, 21471091 + ... + 21477196.

It is an arithmetic number, because the mean of its divisors is an integer number (17007522048).

Almost surely, 2^131121120211 is an apocalyptic number.

131121120211 is a deficient number, since it is larger than the sum of its proper divisors (4939056173).

131121120211 is an equidigital number, since it uses as much as digits as its factorization.

131121120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42948401.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 131121120211 its reverse (112021121131), we get a palindrome (243142241342).

The spelling of 131121120211 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".