3121231003 has 16 divisors (see below), whose sum is σ = 3473982432. Its totient is φ = 2780128000.

The previous prime is 3121230967. The next prime is 3121231007. The reversal of 3121231003 is 3001321213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121231003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121231007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475383 + ... + 481903.

It is an arithmetic number, because the mean of its divisors is an integer number (217123902).

Almost surely, 2^3121231003 is an apocalyptic number.

3121231003 is a deficient number, since it is larger than the sum of its proper divisors (352751429).

3121231003 is a wasteful number, since it uses less digits than its factorization.

3121231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3121231003 is about 55867.9783328518. The cubic root of 3121231003 is about 1461.4208665661.

Adding to 3121231003 its reverse (3001321213), we get a palindrome (6122552216).

The spelling of 3121231003 in words is "three billion, one hundred twenty-one million, two hundred thirty-one thousand, three".