131332211 has 2 divisors, whose sum is σ = 131332212. Its totient is φ = 131332210.

The previous prime is 131332177. The next prime is 131332273. The reversal of 131332211 is 112233131.

It is a weak prime.

It is an emirp because it is prime and its reverse (112233131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131332211 is a prime.

It is a super-2 number, since 2×131332211² = 34496299292297042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131332211.

It is not a weakly prime, because it can be changed into another prime (131332111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666105 + 65666106.

It is an arithmetic number, because the mean of its divisors is an integer number (65666106).

Almost surely, 2^131332211 is an apocalyptic number.

131332211 is a deficient number, since it is larger than the sum of its proper divisors (1).

131332211 is an equidigital number, since it uses as much as digits as its factorization.

131332211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 17.

The square root of 131332211 is about 11460.0266579097. The cubic root of 131332211 is about 508.3042628782.

Adding to 131332211 its reverse (112233131), we get a palindrome (243565342).

The spelling of 131332211 in words is "one hundred thirty-one million, three hundred thirty-two thousand, two hundred eleven".