121211133303287 has 2 divisors, whose sum is σ = 121211133303288. Its totient is φ = 121211133303286.

The previous prime is 121211133303263. The next prime is 121211133303313. The reversal of 121211133303287 is 782303331112121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121211133303287 - 2³⁸ = 120936255396343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121211133303287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121211133303217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605566651643 + 60605566651644.

It is an arithmetic number, because the mean of its divisors is an integer number (60605566651644).

Almost surely, 2^{121211133303287} is an apocalyptic number.

121211133303287 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211133303287 is an equidigital number, since it uses as much as digits as its factorization.

121211133303287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 121211133303287 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred thirty-three million, three hundred three thousand, two hundred eighty-seven".