1204122311 has 8 divisors (see below), whose sum is σ = 1423593120. Its totient is φ = 996514848.

The previous prime is 1204122307. The next prime is 1204122313. The reversal of 1204122311 is 1132214021.

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

It is not a de Polignac number, because 1204122311 - 2² = 1204122307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204122311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204122313) by changing a digit.

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, 2965616 + ... + 2966021.

It is an arithmetic number, because the mean of its divisors is an integer number (177949140).

Almost surely, 2^1204122311 is an apocalyptic number.

1204122311 is a deficient number, since it is larger than the sum of its proper divisors (219470809).

1204122311 is an equidigital number, since it uses as much as digits as its factorization.

1204122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931673.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1204122311 is about 34700.4655732456. The cubic root of 1204122311 is about 1063.8740143172.

Adding to 1204122311 its reverse (1132214021), we get a palindrome (2336336332).

The spelling of 1204122311 in words is "one billion, two hundred four million, one hundred twenty-two thousand, three hundred eleven".