13123432330 has 8 divisors (see below), whose sum is σ = 23622178212. Its totient is φ = 5249372928.

The previous prime is 13123432327. The next prime is 13123432339. The reversal of 13123432330 is 3323432131.

It can be written as a sum of positive squares in 2 ways, for example, as 12023780409 + 1099651921 = 109653^2 + 33161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13123432330² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13123432295 and 13123432304.

It is not an unprimeable number, because it can be changed into a prime (13123432339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656171607 + ... + 656171626.

Almost surely, 2^13123432330 is an apocalyptic number.

13123432330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123432330 is a deficient number, since it is larger than the sum of its proper divisors (10498745882).

13123432330 is a wasteful number, since it uses less digits than its factorization.

13123432330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312343240.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 13123432330 its reverse (3323432131), we get a palindrome (16446864461).

The spelling of 13123432330 in words is "thirteen billion, one hundred twenty-three million, four hundred thirty-two thousand, three hundred thirty".