Search a number
-
+
2111122423 is a prime number
BaseRepresentation
bin111110111010101…
…0010101111110111
312110010110010112101
41331311102233313
513310421404143
6545252402531
7103213146604
oct17565225767
95403403471
102111122423
11993745583
124ab016447
132784b3587
141605436ab
15c5512b4d
hex7dd52bf7

2111122423 has 2 divisors, whose sum is σ = 2111122424. Its totient is φ = 2111122422.

The previous prime is 2111122411. The next prime is 2111122439. The reversal of 2111122423 is 3242211112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2111122423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111122423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111122493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055561211 + 1055561212.

It is an arithmetic number, because the mean of its divisors is an integer number (1055561212).

Almost surely, 22111122423 is an apocalyptic number.

2111122423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111122423 is an equidigital number, since it uses as much as digits as its factorization.

2111122423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 2111122423 is about 45946.9522710702. The cubic root of 2111122423 is about 1282.8360016750.

Adding to 2111122423 its reverse (3242211112), we get a palindrome (5353333535).

It can be divided in two parts, 21111 and 22423, that added together give a palindrome (43534).

The spelling of 2111122423 in words is "two billion, one hundred eleven million, one hundred twenty-two thousand, four hundred twenty-three".