1211113132042 has 8 divisors (see below), whose sum is σ = 1981821488832. Its totient is φ = 550505969100.

The previous prime is 1211113131971. The next prime is 1211113132043. The reversal of 1211113132042 is 2402313111121.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 55050596911 = 1211113132042 / (1 + 2 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 2 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (1211113132043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27525298434 + ... + 27525298477.

It is an arithmetic number, because the mean of its divisors is an integer number (247727686104).

Almost surely, 2^{1211113132042} is an apocalyptic number.

1211113132042 is a deficient number, since it is larger than the sum of its proper divisors (770708356790).

1211113132042 is a wasteful number, since it uses less digits than its factorization.

1211113132042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55050596924.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1211113132042 its reverse (2402313111121), we get a palindrome (3613426243163).

The spelling of 1211113132042 in words is "one trillion, two hundred eleven billion, one hundred thirteen million, one hundred thirty-two thousand, forty-two".