121021303213311 has 16 divisors (see below), whose sum is σ = 166580310758400. Its totient is φ = 78071999607360.

The previous prime is 121021303213303. The next prime is 121021303213313. The reversal of 121021303213311 is 113312303120121.

It is not a de Polignac number, because 121021303213311 - 2³ = 121021303213303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021303213313) 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 15 ways as a sum of consecutive naturals, for example, 51004861 + ... + 53324838.

It is an arithmetic number, because the mean of its divisors is an integer number (10411269422400).

Almost surely, 2^{121021303213311} is an apocalyptic number.

121021303213311 is a deficient number, since it is larger than the sum of its proper divisors (45559007545089).

121021303213311 is a wasteful number, since it uses less digits than its factorization.

121021303213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104342206.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121021303213311 its reverse (113312303120121), we get a palindrome (234333606333432).

The spelling of 121021303213311 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred three million, two hundred thirteen thousand, three hundred eleven".