121302055011 has 16 divisors (see below), whose sum is σ = 164245783424. Its totient is φ = 79614589824.

The previous prime is 121302055009. The next prime is 121302055057. The reversal of 121302055011 is 110550203121.

It is not a de Polignac number, because 121302055011 - 2¹ = 121302055009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121302055711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171195 + ... + 521451.

It is an arithmetic number, because the mean of its divisors is an integer number (10265361464).

Almost surely, 2^121302055011 is an apocalyptic number.

121302055011 is a deficient number, since it is larger than the sum of its proper divisors (42943728413).

121302055011 is a wasteful number, since it uses less digits than its factorization.

121302055011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352050.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 121302055011 its reverse (110550203121), we get a palindrome (231852258132).

The spelling of 121302055011 in words is "one hundred twenty-one billion, three hundred two million, fifty-five thousand, eleven".