1234330552021 has 16 divisors (see below), whose sum is σ = 1440341190400. Its totient is φ = 1057344457680.

The previous prime is 1234330552003. The next prime is 1234330552033. The reversal of 1234330552021 is 1202550334321.

It is a de Polignac number, because none of the positive numbers 2^k-1234330552021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234330552051) 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 15 ways as a sum of consecutive naturals, for example, 554001 + ... + 1666006.

It is an arithmetic number, because the mean of its divisors is an integer number (90021324400).

Almost surely, 2^{1234330552021} is an apocalyptic number.

It is an amenable number.

1234330552021 is a deficient number, since it is larger than the sum of its proper divisors (206010638379).

1234330552021 is an equidigital number, since it uses as much as digits as its factorization.

1234330552021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221649 (or 2221635 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 1234330552021 its reverse (1202550334321), we get a palindrome (2436880886342).

The spelling of 1234330552021 in words is "one trillion, two hundred thirty-four billion, three hundred thirty million, five hundred fifty-two thousand, twenty-one".