121135155320411 has 4 divisors (see below), whose sum is σ = 121135510375824. Its totient is φ = 121134800265000.

The previous prime is 121135155320381. The next prime is 121135155320503. The reversal of 121135155320411 is 114023551531121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121135155320411 - 2¹⁴ = 121135155304027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121135155323411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177015455 + ... + 177698456.

It is an arithmetic number, because the mean of its divisors is an integer number (30283877593956).

Almost surely, 2^{121135155320411} is an apocalyptic number.

121135155320411 is a deficient number, since it is larger than the sum of its proper divisors (355055413).

121135155320411 is an equidigital number, since it uses as much as digits as its factorization.

121135155320411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355055412.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 121135155320411 in words is "one hundred twenty-one trillion, one hundred thirty-five billion, one hundred fifty-five million, three hundred twenty thousand, four hundred eleven".