13121202330 has 48 divisors (see below), whose sum is σ = 35037165384. Its totient is φ = 3404419200.

The previous prime is 13121202329. The next prime is 13121202373. The reversal of 13121202330 is 3320212131.

13121202330 is a `hidden beast` number, since 1 + 312 + 1 + 20 + 2 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12170281761 + 950920569 = 110319^2 + 30837^2 .

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

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, 1966821 + ... + 1973480.

Almost surely, 2^13121202330 is an apocalyptic number.

13121202330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121202330 is an abundant number, since it is smaller than the sum of its proper divisors (21915963054).

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

13121202330 is a wasteful number, since it uses less digits than its factorization.

13121202330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940351 (or 3940348 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13121202330 its reverse (3320212131), we get a palindrome (16441414461).

The spelling of 13121202330 in words is "thirteen billion, one hundred twenty-one million, two hundred two thousand, three hundred thirty".