1023123103 has 4 divisors (see below), whose sum is σ = 1058403240. Its totient is φ = 987842968.

The previous prime is 1023123097. The next prime is 1023123107. The reversal of 1023123103 is 3013213201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023123103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023123107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17640025 + ... + 17640082.

It is an arithmetic number, because the mean of its divisors is an integer number (264600810).

Almost surely, 2^1023123103 is an apocalyptic number.

1023123103 is a deficient number, since it is larger than the sum of its proper divisors (35280137).

1023123103 is an equidigital number, since it uses as much as digits as its factorization.

1023123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280136.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1023123103 is about 31986.2955498132. The cubic root of 1023123103 is about 1007.6490439502.

Adding to 1023123103 its reverse (3013213201), we get a palindrome (4036336304).

The spelling of 1023123103 in words is "one billion, twenty-three million, one hundred twenty-three thousand, one hundred three".