331130331033021 has 24 divisors (see below), whose sum is σ = 515092475302496. Its totient is φ = 203772175437600.

The previous prime is 331130331033011. The next prime is 331130331033079. The reversal of 331130331033021 is 120330133031133.

331130331033021 is a `hidden beast` number, since 3 + 3 + 1 + 1 + 303 + 3 + 1 + 0 + 330 + 21 = 666.

It is not a de Polignac number, because 331130331033021 - 2⁶ = 331130331032957 is a prime.

It is a super-2 number, since 2×331130331033021² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331130331033011) 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, 81863046 + ... + 85812696.

Almost surely, 2^{331130331033021} is an apocalyptic number.

It is an amenable number.

331130331033021 is a deficient number, since it is larger than the sum of its proper divisors (183962144269475).

331130331033021 is a wasteful number, since it uses less digits than its factorization.

331130331033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666233 (or 4666230 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

Adding to 331130331033021 its reverse (120330133031133), we get a palindrome (451460464064154).

The spelling of 331130331033021 in words is "three hundred thirty-one trillion, one hundred thirty billion, three hundred thirty-one million, thirty-three thousand, twenty-one".