13012220330 has 24 divisors (see below), whose sum is σ = 24484630212. Its totient is φ = 4978586624.

The previous prime is 13012220317. The next prime is 13012220363. The reversal of 13012220330 is 3302221031.

It can be written as a sum of positive squares in 2 ways, for example, as 12998508121 + 13712209 = 114011^2 + 3703^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13012220299 and 13012220308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224599 + ... + 1235178.

Almost surely, 2^13012220330 is an apocalyptic number.

13012220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13012220330 is a deficient number, since it is larger than the sum of its proper divisors (11472409882).

13012220330 is a wasteful number, since it uses less digits than its factorization.

13012220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459830 (or 2459807 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13012220330 its reverse (3302221031), we get a palindrome (16314441361).

The spelling of 13012220330 in words is "thirteen billion, twelve million, two hundred twenty thousand, three hundred thirty".