121403153313259 has 2 divisors, whose sum is σ = 121403153313260. Its totient is φ = 121403153313258.

The previous prime is 121403153313193. The next prime is 121403153313263. The reversal of 121403153313259 is 952313351304121.

It is a strong prime.

It is an emirp because it is prime and its reverse (952313351304121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121403153313259 - 2²⁵ = 121403119758827 is a prime.

It is not a weakly prime, because it can be changed into another prime (121403153313359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60701576656629 + 60701576656630.

It is an arithmetic number, because the mean of its divisors is an integer number (60701576656630).

Almost surely, 2^{121403153313259} is an apocalyptic number.

121403153313259 is a deficient number, since it is larger than the sum of its proper divisors (1).

121403153313259 is an equidigital number, since it uses as much as digits as its factorization.

121403153313259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 121403153313259 in words is "one hundred twenty-one trillion, four hundred three billion, one hundred fifty-three million, three hundred thirteen thousand, two hundred fifty-nine".