10020440434231 has 2 divisors, whose sum is σ = 10020440434232. Its totient is φ = 10020440434230.

The previous prime is 10020440434229. The next prime is 10020440434297. The reversal of 10020440434231 is 13243404402001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10020440434231 - 2¹ = 10020440434229 is a prime.

It is a super-2 number, since 2×10020440434231² (a number of 27 digits) contains 22 as substring.

Together with 10020440434229, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10020440434231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020440434331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010220217115 + 5010220217116.

It is an arithmetic number, because the mean of its divisors is an integer number (5010220217116).

Almost surely, 2^{10020440434231} is an apocalyptic number.

10020440434231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020440434231 is an equidigital number, since it uses as much as digits as its factorization.

10020440434231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 10020440434231 its reverse (13243404402001), we get a palindrome (23263844836232).

The spelling of 10020440434231 in words is "ten trillion, twenty billion, four hundred forty million, four hundred thirty-four thousand, two hundred thirty-one".