20423442321441 has 8 divisors (see below), whose sum is σ = 30256951587360. Its totient is φ = 13615628214276.

The previous prime is 20423442321433. The next prime is 20423442321449. The reversal of 20423442321441 is 14412324432402.

20423442321441 is a `hidden beast` number, since 2 + 0 + 42 + 3 + 442 + 32 + 144 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20423442321433) and next prime (20423442321449).

It is not a de Polignac number, because 20423442321441 - 2³ = 20423442321433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20423442321396 and 20423442321405.

It is not an unprimeable number, because it can be changed into a prime (20423442321449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378211894815 + ... + 378211894868.

It is an arithmetic number, because the mean of its divisors is an integer number (3782118948420).

Almost surely, 2^{20423442321441} is an apocalyptic number.

It is an amenable number.

20423442321441 is a deficient number, since it is larger than the sum of its proper divisors (9833509265919).

20423442321441 is an equidigital number, since it uses as much as digits as its factorization.

20423442321441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756423789692 (or 756423789686 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 20423442321441 its reverse (14412324432402), we get a palindrome (34835766753843).

The spelling of 20423442321441 in words is "twenty trillion, four hundred twenty-three billion, four hundred forty-two million, three hundred twenty-one thousand, four hundred forty-one".