1213444411142 has 16 divisors (see below), whose sum is σ = 1824275196000. Its totient is φ = 605353869120.

The previous prime is 1213444411133. The next prime is 1213444411169. The reversal of 1213444411142 is 2411144443121.

It is a junction number, because it is equal to n+sod(n) for n = 1213444411099 and 1213444411108.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1751042 + ... + 2343722.

It is an arithmetic number, because the mean of its divisors is an integer number (114017199750).

Almost surely, 2^{1213444411142} is an apocalyptic number.

1213444411142 is a deficient number, since it is larger than the sum of its proper divisors (610830784858).

1213444411142 is a wasteful number, since it uses less digits than its factorization.

1213444411142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594991.

The product of its digits is 12288, while the sum is 32.

Adding to 1213444411142 its reverse (2411144443121), we get a palindrome (3624588854263).

The spelling of 1213444411142 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, four hundred eleven thousand, one hundred forty-two".