13231222032 has 80 divisors (see below), whose sum is σ = 39219489792. Its totient is φ = 3765264000.

The previous prime is 13231222007. The next prime is 13231222063. The reversal of 13231222032 is 23022213231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5893 + ... + 162779.

Almost surely, 2^13231222032 is an apocalyptic number.

13231222032 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 13231222032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19609744896).

13231222032 is an abundant number, since it is smaller than the sum of its proper divisors (25988267760).

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

13231222032 is a wasteful number, since it uses less digits than its factorization.

13231222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157156 (or 157150 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13231222032 its reverse (23022213231), we get a palindrome (36253435263).

The spelling of 13231222032 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand, thirty-two".