1023123775 has 6 divisors (see below), whose sum is σ = 1268673512. Its totient is φ = 818499000.

The previous prime is 1023123763. The next prime is 1023123791. The reversal of 1023123775 is 5773213201.

It is not a de Polignac number, because 1023123775 - 2²¹ = 1021026623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20462451 + ... + 20462500.

Almost surely, 2^1023123775 is an apocalyptic number.

1023123775 is a deficient number, since it is larger than the sum of its proper divisors (245549737).

1023123775 is an equidigital number, since it uses as much as digits as its factorization.

1023123775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40924961 (or 40924956 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 1023123775 is about 31986.3060543102. The cubic root of 1023123775 is about 1007.6492645623.

Adding to 1023123775 its reverse (5773213201), we get a palindrome (6796336976).

The spelling of 1023123775 in words is "one billion, twenty-three million, one hundred twenty-three thousand, seven hundred seventy-five".