111212001210043 has 2 divisors, whose sum is σ = 111212001210044. Its totient is φ = 111212001210042.

The previous prime is 111212001210007. The next prime is 111212001210161. The reversal of 111212001210043 is 340012100212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111212001210043 - 2²¹ = 111211999112891 is a prime.

It is a super-3 number, since 3×111212001210043³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111212001210043.

It is not a weakly prime, because it can be changed into another prime (111212001213043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606000605021 + 55606000605022.

It is an arithmetic number, because the mean of its divisors is an integer number (55606000605022).

Almost surely, 2^{111212001210043} is an apocalyptic number.

111212001210043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212001210043 is an equidigital number, since it uses as much as digits as its factorization.

111212001210043 is an evil number, because the sum of its binary digits is even.

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

Adding to 111212001210043 its reverse (340012100212111), we get a palindrome (451224101422154).

The spelling of 111212001210043 in words is "one hundred eleven trillion, two hundred twelve billion, one million, two hundred ten thousand, forty-three".