1212443142043 has 8 divisors (see below), whose sum is σ = 1386111058400. Its totient is φ = 1038890664000.

The previous prime is 1212443142019. The next prime is 1212443142077. The reversal of 1212443142043 is 3402413442121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1212443142043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212443141996 and 1212443142014.

It is not an unprimeable number, because it can be changed into a prime (1212443142143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28837068 + ... + 28879081.

It is an arithmetic number, because the mean of its divisors is an integer number (173263882300).

Almost surely, 2^{1212443142043} is an apocalyptic number.

1212443142043 is a deficient number, since it is larger than the sum of its proper divisors (173667916357).

1212443142043 is an equidigital number, since it uses as much as digits as its factorization.

1212443142043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57719157.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1212443142043 its reverse (3402413442121), we get a palindrome (4614856584164).

The spelling of 1212443142043 in words is "one trillion, two hundred twelve billion, four hundred forty-three million, one hundred forty-two thousand, forty-three".