212303087149 has 2 divisors, whose sum is σ = 212303087150. Its totient is φ = 212303087148.

The previous prime is 212303087057. The next prime is 212303087153. The reversal of 212303087149 is 941780303212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119503650249 + 92799436900 = 345693^2 + 304630^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303087149 - 2³⁷ = 74864133677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303087189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151543574 + 106151543575.

It is an arithmetic number, because the mean of its divisors is an integer number (106151543575).

Almost surely, 2^212303087149 is an apocalyptic number.

It is an amenable number.

212303087149 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303087149 is an equidigital number, since it uses as much as digits as its factorization.

212303087149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 212303087149 in words is "two hundred twelve billion, three hundred three million, eighty-seven thousand, one hundred forty-nine".