121012230043 has 2 divisors, whose sum is σ = 121012230044. Its totient is φ = 121012230042.

The previous prime is 121012229981. The next prime is 121012230089. The reversal of 121012230043 is 340032210121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121012230043 - 2¹³ = 121012221851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121012230043.

It is not a weakly prime, because it can be changed into another prime (121012236043) 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 as a sum of consecutive naturals, namely, 60506115021 + 60506115022.

It is an arithmetic number, because the mean of its divisors is an integer number (60506115022).

Almost surely, 2^121012230043 is an apocalyptic number.

121012230043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012230043 is an equidigital number, since it uses as much as digits as its factorization.

121012230043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121012230043 its reverse (340032210121), we get a palindrome (461044440164).

The spelling of 121012230043 in words is "one hundred twenty-one billion, twelve million, two hundred thirty thousand, forty-three".