13121332330 has 32 divisors (see below), whose sum is σ = 24651817344. Its totient is φ = 5019005376.

The previous prime is 13121332321. The next prime is 13121332333. The reversal of 13121332330 is 3323312131.

It is a super-2 number, since 2×13121332330² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13121332333) 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, 1660569 + ... + 1668451.

It is an arithmetic number, because the mean of its divisors is an integer number (770369292).

Almost surely, 2^13121332330 is an apocalyptic number.

13121332330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121332330 is a deficient number, since it is larger than the sum of its proper divisors (11530485014).

13121332330 is a wasteful number, since it uses less digits than its factorization.

13121332330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13121332330 its reverse (3323312131), we get a palindrome (16444644461).

The spelling of 13121332330 in words is "thirteen billion, one hundred twenty-one million, three hundred thirty-two thousand, three hundred thirty".