1123211133442 has 16 divisors (see below), whose sum is σ = 1716342469920. Its totient is φ = 551129971968.

The previous prime is 1123211133391. The next prime is 1123211133461. The reversal of 1123211133442 is 2443311123211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123211133442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8180388 + ... + 8316559.

It is an arithmetic number, because the mean of its divisors is an integer number (107271404370).

Almost surely, 2^{1123211133442} is an apocalyptic number.

1123211133442 is a deficient number, since it is larger than the sum of its proper divisors (593131336478).

1123211133442 is a wasteful number, since it uses less digits than its factorization.

1123211133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16497585.

The product of its digits is 3456, while the sum is 28.

Adding to 1123211133442 its reverse (2443311123211), we get a palindrome (3566522256653).

The spelling of 1123211133442 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, one hundred thirty-three thousand, four hundred forty-two".