1211341120404 has 24 divisors (see below), whose sum is σ = 2828318508960. Its totient is φ = 403515245664.

The previous prime is 1211341120393. The next prime is 1211341120439. The reversal of 1211341120404 is 4040211431121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33121939 + ... + 33158490.

It is an arithmetic number, because the mean of its divisors is an integer number (117846604540).

Almost surely, 2^{1211341120404} is an apocalyptic number.

It is an amenable number.

1211341120404 is an abundant number, since it is smaller than the sum of its proper divisors (1616977388556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211341120404 is a wasteful number, since it uses less digits than its factorization.

1211341120404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66281959 (or 66281957 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1211341120404 its reverse (4040211431121), we get a palindrome (5251552551525).

The spelling of 1211341120404 in words is "one trillion, two hundred eleven billion, three hundred forty-one million, one hundred twenty thousand, four hundred four".