12121011210043 has 2 divisors, whose sum is σ = 12121011210044. Its totient is φ = 12121011210042.

The previous prime is 12121011209971. The next prime is 12121011210101. The reversal of 12121011210043 is 34001211012121.

It is a strong prime.

It is an emirp because it is prime and its reverse (34001211012121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12121011210043 - 2⁴¹ = 9921987954491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12121011210043.

It is not a weakly prime, because it can be changed into another prime (12121011210443) 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, 6060505605021 + 6060505605022.

It is an arithmetic number, because the mean of its divisors is an integer number (6060505605022).

Almost surely, 2^{12121011210043} is an apocalyptic number.

12121011210043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121011210043 is an equidigital number, since it uses as much as digits as its factorization.

12121011210043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12121011210043 its reverse (34001211012121), we get a palindrome (46122222222164).

The spelling of 12121011210043 in words is "twelve trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, forty-three".