1001023123303 has 4 divisors (see below), whose sum is σ = 1144026426640. Its totient is φ = 858019819968.

The previous prime is 1001023123267. The next prime is 1001023123327. The reversal of 1001023123303 is 3033213201001.

1001023123303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1001023123303 - 2¹⁷ = 1001022992231 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 (1001023127303) 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, 71501651658 + ... + 71501651671.

It is an arithmetic number, because the mean of its divisors is an integer number (286006606660).

Almost surely, 2^{1001023123303} is an apocalyptic number.

1001023123303 is a deficient number, since it is larger than the sum of its proper divisors (143003303337).

1001023123303 is an equidigital number, since it uses as much as digits as its factorization.

1001023123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143003303336.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1001023123303 its reverse (3033213201001), we get a palindrome (4034236324304).

The spelling of 1001023123303 in words is "one trillion, one billion, twenty-three million, one hundred twenty-three thousand, three hundred three".