13031231003 has 24 divisors (see below), whose sum is σ = 15630222048. Its totient is φ = 10641641472.

The previous prime is 13031230973. The next prime is 13031231033. The reversal of 13031231003 is 30013213031.

It is an interprime number because it is at equal distance from previous prime (13031230973) and next prime (13031231033).

It is a de Polignac number, because none of the positive numbers 2^k-13031231003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13031231033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 944825 + ... + 958517.

It is an arithmetic number, because the mean of its divisors is an integer number (651259252).

Almost surely, 2^13031231003 is an apocalyptic number.

13031231003 is a deficient number, since it is larger than the sum of its proper divisors (2598991045).

13031231003 is a wasteful number, since it uses less digits than its factorization.

13031231003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14003 (or 13980 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13031231003 its reverse (30013213031), we get a palindrome (43044444034).

The spelling of 13031231003 in words is "thirteen billion, thirty-one million, two hundred thirty-one thousand, three".