121248574642087 has 2 divisors, whose sum is σ = 121248574642088. Its totient is φ = 121248574642086.

The previous prime is 121248574642067. The next prime is 121248574642093. The reversal of 121248574642087 is 780246475842121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121248574642087 - 2¹⁵ = 121248574609319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121248574642057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60624287321043 + 60624287321044.

It is an arithmetic number, because the mean of its divisors is an integer number (60624287321044).

Almost surely, 2^{121248574642087} is an apocalyptic number.

121248574642087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121248574642087 is an equidigital number, since it uses as much as digits as its factorization.

121248574642087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48168960, while the sum is 61.

The spelling of 121248574642087 in words is "one hundred twenty-one trillion, two hundred forty-eight billion, five hundred seventy-four million, six hundred forty-two thousand, eighty-seven".