121301021233111 has 4 divisors (see below), whose sum is σ = 128436375423312. Its totient is φ = 114165667042912.

The previous prime is 121301021233097. The next prime is 121301021233121. The reversal of 121301021233111 is 111332120103121.

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 121301021233111 - 2⁷ = 121301021232983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301021233121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567677095075 + ... + 3567677095108.

It is an arithmetic number, because the mean of its divisors is an integer number (32109093855828).

Almost surely, 2^{121301021233111} is an apocalyptic number.

121301021233111 is a deficient number, since it is larger than the sum of its proper divisors (7135354190201).

121301021233111 is an equidigital number, since it uses as much as digits as its factorization.

121301021233111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135354190200.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121301021233111 its reverse (111332120103121), we get a palindrome (232633141336232).

The spelling of 121301021233111 in words is "one hundred twenty-one trillion, three hundred one billion, twenty-one million, two hundred thirty-three thousand, one hundred eleven".