20243121022434 has 64 divisors (see below), whose sum is σ = 42274780554240. Its totient is φ = 6454235027520.

The previous prime is 20243121022393. The next prime is 20243121022459. The reversal of 20243121022434 is 43422012134202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7673089 + ... + 9968075.

It is an arithmetic number, because the mean of its divisors is an integer number (660543446160).

Almost surely, 2^{20243121022434} is an apocalyptic number.

20243121022434 is an abundant number, since it is smaller than the sum of its proper divisors (22031659531806).

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

20243121022434 is a wasteful number, since it uses less digits than its factorization.

20243121022434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295495.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20243121022434 its reverse (43422012134202), we get a palindrome (63665133156636).

It can be divided in two parts, 2024312 and 1022434, that added together give a triangular number (3046746 = T₂₄₆₈).

The spelling of 20243121022434 in words is "twenty trillion, two hundred forty-three billion, one hundred twenty-one million, twenty-two thousand, four hundred thirty-four".