13203122112 has 168 divisors, whose sum is σ = 38506603200. Its totient is φ = 4324589568.

The previous prime is 13203121999. The next prime is 13203122197. The reversal of 13203122112 is 21122130231.

13203122112 is a `hidden beast` number, since 1 + 320 + 312 + 21 + 12 = 666.

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

It is a congruent number.

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, 11693964 + ... + 11695092.

Almost surely, 2^13203122112 is an apocalyptic number.

13203122112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19253301600).

13203122112 is an abundant number, since it is smaller than the sum of its proper divisors (25303481088).

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

13203122112 is a wasteful number, since it uses less digits than its factorization.

13203122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13203122112 its reverse (21122130231), we get a palindrome (34325252343).

The spelling of 13203122112 in words is "thirteen billion, two hundred three million, one hundred twenty-two thousand, one hundred twelve".