120121132321111 has 2 divisors, whose sum is σ = 120121132321112. Its totient is φ = 120121132321110.

The previous prime is 120121132321061. The next prime is 120121132321129. The reversal of 120121132321111 is 111123231121021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120121132321111 - 2⁹ = 120121132320599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121132322111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060566160555 + 60060566160556.

It is an arithmetic number, because the mean of its divisors is an integer number (60060566160556).

Almost surely, 2^{120121132321111} is an apocalyptic number.

120121132321111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121132321111 is an equidigital number, since it uses as much as digits as its factorization.

120121132321111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 120121132321111 its reverse (111123231121021), we get a palindrome (231244363442132).

The spelling of 120121132321111 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred eleven".