212303087489 has 2 divisors, whose sum is σ = 212303087490. Its totient is φ = 212303087488.

The previous prime is 212303087473. The next prime is 212303087519. The reversal of 212303087489 is 984780303212.

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., 191574286864 + 20728800625 = 437692^2 + 143975^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303087489 - 2⁴ = 212303087473 is a prime.

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, 106151543744 + 106151543745.

It is an arithmetic number, because the mean of its divisors is an integer number (106151543745).

Almost surely, 2^212303087489 is an apocalyptic number.

It is an amenable number.

212303087489 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303087489 is an equidigital number, since it uses as much as digits as its factorization.

212303087489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 212303087489 in words is "two hundred twelve billion, three hundred three million, eighty-seven thousand, four hundred eighty-nine".