1003121332523 has 4 divisors (see below), whose sum is σ = 1004425782360. Its totient is φ = 1001816882688.

The previous prime is 1003121332513. The next prime is 1003121332531. The reversal of 1003121332523 is 3252331213001.

1003121332523 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 1003121332523 - 2²⁴ = 1003104555307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003121332492 and 1003121332501.

It is not an unprimeable number, because it can be changed into a prime (1003121332513) 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, 652223765 + ... + 652225302.

It is an arithmetic number, because the mean of its divisors is an integer number (251106445590).

Almost surely, 2^{1003121332523} is an apocalyptic number.

1003121332523 is a deficient number, since it is larger than the sum of its proper divisors (1304449837).

1003121332523 is an equidigital number, since it uses as much as digits as its factorization.

1003121332523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304449836.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 1003121332523 its reverse (3252331213001), we get a palindrome (4255452545524).

The spelling of 1003121332523 in words is "one trillion, three billion, one hundred twenty-one million, three hundred thirty-two thousand, five hundred twenty-three".