2003021303023 has 4 divisors (see below), whose sum is σ = 2157099864808. Its totient is φ = 1848942741240.

The previous prime is 2003021302973. The next prime is 2003021303053. The reversal of 2003021303023 is 3203031203002.

It is a happy number.

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 2003021303023 - 2¹³ = 2003021294831 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 (2003021303053) 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, 77039280873 + ... + 77039280898.

It is an arithmetic number, because the mean of its divisors is an integer number (539274966202).

Almost surely, 2^{2003021303023} is an apocalyptic number.

2003021303023 is a deficient number, since it is larger than the sum of its proper divisors (154078561785).

2003021303023 is a wasteful number, since it uses less digits than its factorization.

2003021303023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154078561784.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 2003021303023 its reverse (3203031203002), we get a palindrome (5206052506025).

The spelling of 2003021303023 in words is "two trillion, three billion, twenty-one million, three hundred three thousand, twenty-three".