20111011177343 has 2 divisors, whose sum is σ = 20111011177344. Its totient is φ = 20111011177342.

The previous prime is 20111011177307. The next prime is 20111011177349. The reversal of 20111011177343 is 34377111011102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111011177343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111011177349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055505588671 + 10055505588672.

It is an arithmetic number, because the mean of its divisors is an integer number (10055505588672).

Almost surely, 2^{20111011177343} is an apocalyptic number.

20111011177343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111011177343 is an equidigital number, since it uses as much as digits as its factorization.

20111011177343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

Adding to 20111011177343 its reverse (34377111011102), we get a palindrome (54488122188445).

The spelling of 20111011177343 in words is "twenty trillion, one hundred eleven billion, eleven million, one hundred seventy-seven thousand, three hundred forty-three".