20111403441343 has 2 divisors, whose sum is σ = 20111403441344. Its totient is φ = 20111403441342.

The previous prime is 20111403441341. The next prime is 20111403441361. The reversal of 20111403441343 is 34314430411102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20111403441343 - 2¹ = 20111403441341 is a prime.

Together with 20111403441341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111403441341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055701720671 + 10055701720672.

It is an arithmetic number, because the mean of its divisors is an integer number (10055701720672).

Almost surely, 2^{20111403441343} is an apocalyptic number.

20111403441343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111403441343 is an equidigital number, since it uses as much as digits as its factorization.

20111403441343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 20111403441343 its reverse (34314430411102), we get a palindrome (54425833852445).

The spelling of 20111403441343 in words is "twenty trillion, one hundred eleven billion, four hundred three million, four hundred forty-one thousand, three hundred forty-three".