1040255123 has 2 divisors, whose sum is σ = 1040255124. Its totient is φ = 1040255122.

The previous prime is 1040255119. The next prime is 1040255131. The reversal of 1040255123 is 3215520401.

It is a weak prime.

It is an emirp because it is prime and its reverse (3215520401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040255123 - 2² = 1040255119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040255423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520127561 + 520127562.

It is an arithmetic number, because the mean of its divisors is an integer number (520127562).

Almost surely, 2^1040255123 is an apocalyptic number.

1040255123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040255123 is an equidigital number, since it uses as much as digits as its factorization.

1040255123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1040255123 is about 32252.9862648407. The cubic root of 1040255123 is about 1013.2422432860.

Adding to 1040255123 its reverse (3215520401), we get a palindrome (4255775524).

The spelling of 1040255123 in words is "one billion, forty million, two hundred fifty-five thousand, one hundred twenty-three".