2003121012323 has 8 divisors (see below), whose sum is σ = 2010643729200. Its totient is φ = 1995600391200.

The previous prime is 2003121012317. The next prime is 2003121012359. The reversal of 2003121012323 is 3232101213002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2003121012323 - 2²⁴ = 2003104235107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003121012295 and 2003121012304.

It is not an unprimeable number, because it can be changed into a prime (2003121012313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404548 + ... + 2445198.

It is an arithmetic number, because the mean of its divisors is an integer number (251330466150).

Almost surely, 2^{2003121012323} is an apocalyptic number.

2003121012323 is a deficient number, since it is larger than the sum of its proper divisors (7522716877).

2003121012323 is a wasteful number, since it uses less digits than its factorization.

2003121012323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047877.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2003121012323 its reverse (3232101213002), we get a palindrome (5235222225325).

The spelling of 2003121012323 in words is "two trillion, three billion, one hundred twenty-one million, twelve thousand, three hundred twenty-three".