2646211123 has 2 divisors, whose sum is σ = 2646211124. Its totient is φ = 2646211122.

The previous prime is 2646211121. The next prime is 2646211133. The reversal of 2646211123 is 3211126462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2646211123 - 2¹ = 2646211121 is a prime.

It is a super-2 number, since 2×2646211123² = 14004866614977842258, which contains 22 as substring.

Together with 2646211121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2646211091 and 2646211100.

It is not a weakly prime, because it can be changed into another prime (2646211121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323105561 + 1323105562.

It is an arithmetic number, because the mean of its divisors is an integer number (1323105562).

Almost surely, 2^2646211123 is an apocalyptic number.

2646211123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646211123 is an equidigital number, since it uses as much as digits as its factorization.

2646211123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 2646211123 is about 51441.3367147472. The cubic root of 2646211123 is about 1383.1676730769.

Adding to 2646211123 its reverse (3211126462), we get a palindrome (5857337585).

The spelling of 2646211123 in words is "two billion, six hundred forty-six million, two hundred eleven thousand, one hundred twenty-three".