1212443401043 has 16 divisors (see below), whose sum is σ = 1430774661120. Its totient is φ = 1005413407200.

The previous prime is 1212443401033. The next prime is 1212443401061. The reversal of 1212443401043 is 3401043442121.

It is a cyclic number.

It is not a de Polignac number, because 1212443401043 - 2²⁸ = 1212174965587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212443400997 and 1212443401015.

It is not an unprimeable number, because it can be changed into a prime (1212443401033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102788 + ... + 1560593.

It is an arithmetic number, because the mean of its divisors is an integer number (89423416320).

Almost surely, 2^{1212443401043} is an apocalyptic number.

1212443401043 is a deficient number, since it is larger than the sum of its proper divisors (218331260077).

1212443401043 is a wasteful number, since it uses less digits than its factorization.

1212443401043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666778.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1212443401043 its reverse (3401043442121), we get a palindrome (4613486843164).

The spelling of 1212443401043 in words is "one trillion, two hundred twelve billion, four hundred forty-three million, four hundred one thousand, forty-three".