1234404521011 has 8 divisors (see below), whose sum is σ = 1236200609744. Its totient is φ = 1232608739040.

The previous prime is 1234404521003. The next prime is 1234404521027. The reversal of 1234404521011 is 1101254044321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1234404521011 - 2³ = 1234404521003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234404522011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8704405 + ... + 8845081.

It is an arithmetic number, because the mean of its divisors is an integer number (154525076218).

Almost surely, 2^{1234404521011} is an apocalyptic number.

1234404521011 is a deficient number, since it is larger than the sum of its proper divisors (1796088733).

1234404521011 is a wasteful number, since it uses less digits than its factorization.

1234404521011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153381.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1234404521011 its reverse (1101254044321), we get a palindrome (2335658565332).

The spelling of 1234404521011 in words is "one trillion, two hundred thirty-four billion, four hundred four million, five hundred twenty-one thousand, eleven".