23031031003 has 4 divisors (see below), whose sum is σ = 23031334728. Its totient is φ = 23030727280.

The previous prime is 23031030991. The next prime is 23031031021. The reversal of 23031031003 is 30013013032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23031031003 - 2²⁵ = 22997476571 is a prime.

It is a super-2 number, since 2×23031031003² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23031031033) 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, 67575 + ... + 225007.

It is an arithmetic number, because the mean of its divisors is an integer number (5757833682).

Almost surely, 2^23031031003 is an apocalyptic number.

23031031003 is a deficient number, since it is larger than the sum of its proper divisors (303725).

23031031003 is a wasteful number, since it uses less digits than its factorization.

23031031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303724.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 23031031003 its reverse (30013013032), we get a palindrome (53044044035).

The spelling of 23031031003 in words is "twenty-three billion, thirty-one million, thirty-one thousand, three".