121230443011 has 2 divisors, whose sum is σ = 121230443012. Its totient is φ = 121230443010.

The previous prime is 121230443003. The next prime is 121230443023. The reversal of 121230443011 is 110344032121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121230443011 - 2³ = 121230443003 is a prime.

It is a super-2 number, since 2×121230443011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121230443111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615221505 + 60615221506.

It is an arithmetic number, because the mean of its divisors is an integer number (60615221506).

Almost surely, 2^121230443011 is an apocalyptic number.

121230443011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230443011 is an equidigital number, since it uses as much as digits as its factorization.

121230443011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121230443011 its reverse (110344032121), we get a palindrome (231574475132).

The spelling of 121230443011 in words is "one hundred twenty-one billion, two hundred thirty million, four hundred forty-three thousand, eleven".