131112100211 has 4 divisors (see below), whose sum is σ = 138824576712. Its totient is φ = 123399623712.

The previous prime is 131112100157. The next prime is 131112100261. The reversal of 131112100211 is 112001211131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131112100211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131112100261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3856238225 + ... + 3856238258.

It is an arithmetic number, because the mean of its divisors is an integer number (34706144178).

Almost surely, 2^131112100211 is an apocalyptic number.

131112100211 is a deficient number, since it is larger than the sum of its proper divisors (7712476501).

131112100211 is an equidigital number, since it uses as much as digits as its factorization.

131112100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712476500.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 131112100211 its reverse (112001211131), we get a palindrome (243113311342).

The spelling of 131112100211 in words is "one hundred thirty-one billion, one hundred twelve million, one hundred thousand, two hundred eleven".