1023002123 has 36 divisors (see below), whose sum is σ = 1282178520. Its totient is φ = 812972160.

The previous prime is 1023002089. The next prime is 1023002129. The reversal of 1023002123 is 3212003201.

It is a happy number.

It is not a de Polignac number, because 1023002123 - 2¹⁴ = 1022985739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023002098 and 1023002107.

It is not an unprimeable number, because it can be changed into a prime (1023002129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 387215 + ... + 389847.

It is an arithmetic number, because the mean of its divisors is an integer number (35616070).

Almost surely, 2^1023002123 is an apocalyptic number.

1023002123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023002123 is a deficient number, since it is larger than the sum of its proper divisors (259176397).

1023002123 is a wasteful number, since it uses less digits than its factorization.

1023002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700 (or 2676 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1023002123 is about 31984.4043715058. The cubic root of 1023002123 is about 1007.6093256321.

Adding to 1023002123 its reverse (3212003201), we get a palindrome (4235005324).

The spelling of 1023002123 in words is "one billion, twenty-three million, two thousand, one hundred twenty-three".