13131235330 has 32 divisors (see below), whose sum is σ = 23973271920. Its totient is φ = 5177948160.

The previous prime is 13131235307. The next prime is 13131235343. The reversal of 13131235330 is 3353213131.

It can be written as a sum of positive squares in 8 ways, for example, as 6412646241 + 6718589089 = 80079^2 + 81967^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13131235295 and 13131235304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278040 + ... + 321820.

Almost surely, 2^13131235330 is an apocalyptic number.

13131235330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131235330 is a deficient number, since it is larger than the sum of its proper divisors (10842036590).

13131235330 is a wasteful number, since it uses less digits than its factorization.

13131235330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44214.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 13131235330 its reverse (3353213131), we get a palindrome (16484448461).

The spelling of 13131235330 in words is "thirteen billion, one hundred thirty-one million, two hundred thirty-five thousand, three hundred thirty".