31321113133230 has 48 divisors (see below), whose sum is σ = 81435214592784. Its totient is φ = 8352263969280.

The previous prime is 31321113133117. The next prime is 31321113133241. The reversal of 31321113133230 is 3233131112313.

31321113133230 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 111 + 313 + 3 + 230 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31321113133194 and 31321113133203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29824737 + ... + 30857043.

It is an arithmetic number, because the mean of its divisors is an integer number (1696566970683).

Almost surely, 2^{31321113133230} is an apocalyptic number.

31321113133230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31321113133230 is an abundant number, since it is smaller than the sum of its proper divisors (50114101459554).

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

31321113133230 is a wasteful number, since it uses less digits than its factorization.

31321113133230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369441 (or 1369438 counting only the distinct ones).

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

Adding to 31321113133230 its reverse (3233131112313), we get a palindrome (34554244245543).

The spelling of 31321113133230 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirty".