131211210089 has 2 divisors, whose sum is σ = 131211210090. Its totient is φ = 131211210088.

The previous prime is 131211210079. The next prime is 131211210131. The reversal of 131211210089 is 980012112131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100232394025 + 30978816064 = 316595^2 + 176008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131211210089 is a prime.

It is not a weakly prime, because it can be changed into another prime (131211210079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65605605044 + 65605605045.

It is an arithmetic number, because the mean of its divisors is an integer number (65605605045).

Almost surely, 2^131211210089 is an apocalyptic number.

It is an amenable number.

131211210089 is a deficient number, since it is larger than the sum of its proper divisors (1).

131211210089 is an equidigital number, since it uses as much as digits as its factorization.

131211210089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 131211210089 in words is "one hundred thirty-one billion, two hundred eleven million, two hundred ten thousand, eighty-nine".