1234330450021 has 16 divisors (see below), whose sum is σ = 1320589473280. Its totient is φ = 1151566424640.

The previous prime is 1234330450009. The next prime is 1234330450039. The reversal of 1234330450021 is 1200540334321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1234330450021 - 2¹⁹ = 1234329925733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234330450081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811391 + ... + 5061436.

It is an arithmetic number, because the mean of its divisors is an integer number (82536842080).

Almost surely, 2^{1234330450021} is an apocalyptic number.

It is an amenable number.

1234330450021 is a deficient number, since it is larger than the sum of its proper divisors (86259023259).

1234330450021 is a wasteful number, since it uses less digits than its factorization.

1234330450021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873004.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 1234330450021 its reverse (1200540334321), we get a palindrome (2434870784342).

The spelling of 1234330450021 in words is "one trillion, two hundred thirty-four billion, three hundred thirty million, four hundred fifty thousand, twenty-one".