30331321213131 has 16 divisors (see below), whose sum is σ = 46484783469600. Its totient is φ = 19523609056224.

The previous prime is 30331321213099. The next prime is 30331321213147. The reversal of 30331321213131 is 13131212313303.

30331321213131 is a `hidden beast` number, since 3 + 0 + 3 + 3 + 1 + 321 + 21 + 313 + 1 = 666.

It is not a de Polignac number, because 30331321213131 - 2⁵ = 30331321213099 is a prime.

It is a super-2 number, since 2×30331321213131² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30331321213095 and 30331321213104.

It is not an unprimeable number, because it can be changed into a prime (30331321213231) 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, 19368658996 + ... + 19368660561.

It is an arithmetic number, because the mean of its divisors is an integer number (2905298966850).

Almost surely, 2^{30331321213131} is an apocalyptic number.

30331321213131 is a deficient number, since it is larger than the sum of its proper divisors (16153462256469).

30331321213131 is a wasteful number, since it uses less digits than its factorization.

30331321213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38737319595 (or 38737319589 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 30331321213131 its reverse (13131212313303), we get a palindrome (43462533526434).

The spelling of 30331321213131 in words is "thirty trillion, three hundred thirty-one billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred thirty-one".