121003435087 has 2 divisors, whose sum is σ = 121003435088. Its totient is φ = 121003435086.

The previous prime is 121003435081. The next prime is 121003435099. The reversal of 121003435087 is 780534300121.

It is a weak prime.

It is an emirp because it is prime and its reverse (780534300121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121003435087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121003435081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501717543 + 60501717544.

It is an arithmetic number, because the mean of its divisors is an integer number (60501717544).

Almost surely, 2^121003435087 is an apocalyptic number.

121003435087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003435087 is an equidigital number, since it uses as much as digits as its factorization.

121003435087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 121003435087 in words is "one hundred twenty-one billion, three million, four hundred thirty-five thousand, eighty-seven".