121403153313811 has 2 divisors, whose sum is σ = 121403153313812. Its totient is φ = 121403153313810.

The previous prime is 121403153313797. The next prime is 121403153313833. The reversal of 121403153313811 is 118313351304121.

It is a weak prime.

It is an emirp because it is prime and its reverse (118313351304121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121403153313811 - 2⁷ = 121403153313683 is a prime.

It is not a weakly prime, because it can be changed into another prime (121403153310811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60701576656905 + 60701576656906.

It is an arithmetic number, because the mean of its divisors is an integer number (60701576656906).

Almost surely, 2^{121403153313811} is an apocalyptic number.

121403153313811 is a deficient number, since it is larger than the sum of its proper divisors (1).

121403153313811 is an equidigital number, since it uses as much as digits as its factorization.

121403153313811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 121403153313811 in words is "one hundred twenty-one trillion, four hundred three billion, one hundred fifty-three million, three hundred thirteen thousand, eight hundred eleven".