3131123003020 has 48 divisors (see below), whose sum is σ = 7264846024128. Its totient is φ = 1127524597760.

The previous prime is 3131123003017. The next prime is 3131123003033. The reversal of 3131123003020 is 203003211313.

3131123003020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200191861 + ... + 200207500.

It is an arithmetic number, because the mean of its divisors is an integer number (151350958836).

Almost surely, 2^{3131123003020} is an apocalyptic number.

It is an amenable number.

3131123003020 is an abundant number, since it is smaller than the sum of its proper divisors (4133723021108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131123003020 is a wasteful number, since it uses less digits than its factorization.

3131123003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400399410 (or 400399408 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 3131123003020 its reverse (203003211313), we get a palindrome (3334126214333).

The spelling of 3131123003020 in words is "three trillion, one hundred thirty-one billion, one hundred twenty-three million, three thousand, twenty".