121403153313193 has 2 divisors, whose sum is σ = 121403153313194. Its totient is φ = 121403153313192.

The previous prime is 121403153313179. The next prime is 121403153313259. The reversal of 121403153313193 is 391313351304121.

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., 62451039344409 + 58952113968784 = 7902597^2 + 7678028^2 .

It is a cyclic number.

It is not a de Polignac number, because 121403153313193 - 2⁹ = 121403153312681 is a prime.

It is not a weakly prime, because it can be changed into another prime (121403153313163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60701576656596 + 60701576656597.

It is an arithmetic number, because the mean of its divisors is an integer number (60701576656597).

Almost surely, 2^{121403153313193} is an apocalyptic number.

It is an amenable number.

121403153313193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121403153313193 is an equidigital number, since it uses as much as digits as its factorization.

121403153313193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 121403153313193 in words is "one hundred twenty-one trillion, four hundred three billion, one hundred fifty-three million, three hundred thirteen thousand, one hundred ninety-three".