10020440434243 has 16 divisors (see below), whose sum is σ = 10662438458880. Its totient is φ = 9399007691136.

The previous prime is 10020440434231. The next prime is 10020440434297. The reversal of 10020440434243 is 34243404402001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020440434243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020440404243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6449955 + ... + 7851292.

It is an arithmetic number, because the mean of its divisors is an integer number (666402403680).

Almost surely, 2^{10020440434243} is an apocalyptic number.

10020440434243 is a deficient number, since it is larger than the sum of its proper divisors (641998024637).

10020440434243 is a wasteful number, since it uses less digits than its factorization.

10020440434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14301966.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 10020440434243 its reverse (34243404402001), we get a palindrome (44263844836244).

The spelling of 10020440434243 in words is "ten trillion, twenty billion, four hundred forty million, four hundred thirty-four thousand, two hundred forty-three".