1213142340044 has 12 divisors (see below), whose sum is σ = 2180377449264. Its totient is φ = 590177354544.

The previous prime is 1213142340031. The next prime is 1213142340077. The reversal of 1213142340044 is 4400432413121.

It is a junction number, because it is equal to n+sod(n) for n = 1213142339989 and 1213142340016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4098453704 + ... + 4098453999.

It is an arithmetic number, because the mean of its divisors is an integer number (181698120772).

Almost surely, 2^{1213142340044} is an apocalyptic number.

It is an amenable number.

1213142340044 is a deficient number, since it is larger than the sum of its proper divisors (967235109220).

1213142340044 is a wasteful number, since it uses less digits than its factorization.

1213142340044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196907744 (or 8196907742 counting only the distinct ones).

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

Adding to 1213142340044 its reverse (4400432413121), we get a palindrome (5613574753165).

The spelling of 1213142340044 in words is "one trillion, two hundred thirteen billion, one hundred forty-two million, three hundred forty thousand, forty-four".