2542105123 has 2 divisors, whose sum is σ = 2542105124. Its totient is φ = 2542105122.

The previous prime is 2542105117. The next prime is 2542105129. The reversal of 2542105123 is 3215012452.

It is a balanced prime because it is at equal distance from previous prime (2542105117) and next prime (2542105129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542105123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2542105129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271052561 + 1271052562.

It is an arithmetic number, because the mean of its divisors is an integer number (1271052562).

Almost surely, 2^2542105123 is an apocalyptic number.

2542105123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542105123 is an equidigital number, since it uses as much as digits as its factorization.

2542105123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2542105123 is about 50419.2931624393. The cubic root of 2542105123 is about 1364.7858212082.

Adding to 2542105123 its reverse (3215012452), we get a palindrome (5757117575).

The spelling of 2542105123 in words is "two billion, five hundred forty-two million, one hundred five thousand, one hundred twenty-three".