13131321030 has 48 divisors (see below), whose sum is σ = 34609142880. Its totient is φ = 3453715584.

The previous prime is 13131321029. The next prime is 13131321079. The reversal of 13131321030 is 3012313131.

It is a happy number.

13131321030 is a `hidden beast` number, since 1 + 313 + 1 + 321 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13131320994 and 13131321012.

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, 992770 + ... + 1005909.

It is an arithmetic number, because the mean of its divisors is an integer number (721023810).

Almost surely, 2^13131321030 is an apocalyptic number.

13131321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131321030 is an abundant number, since it is smaller than the sum of its proper divisors (21477821850).

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

13131321030 is a wasteful number, since it uses less digits than its factorization.

13131321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998765 (or 1998762 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13131321030 its reverse (3012313131), we get a palindrome (16143634161).

The spelling of 13131321030 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-one thousand, thirty".