331131123011213 has 8 divisors (see below), whose sum is σ = 386158744036800. Its totient is φ = 283826676866460.

The previous prime is 331131123011203. The next prime is 331131123011233. The reversal of 331131123011213 is 312110321131133.

It is not a de Polignac number, because 331131123011213 - 2³⁴ = 331113943142029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331131123011203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482698429703 + ... + 482698430388.

It is an arithmetic number, because the mean of its divisors is an integer number (48269843004600).

Almost surely, 2^{331131123011213} is an apocalyptic number.

It is an amenable number.

331131123011213 is a deficient number, since it is larger than the sum of its proper divisors (55027621025587).

331131123011213 is an frugal number, since it uses more digits than its factorization.

331131123011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965396860112 (or 965396860098 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 331131123011213 its reverse (312110321131133), we get a palindrome (643241444142346).

The spelling of 331131123011213 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, one hundred twenty-three million, eleven thousand, two hundred thirteen".