131304221232 has 160 divisors (see below), whose sum is σ = 368950052352. Its totient is φ = 40124823552.

The previous prime is 131304221231. The next prime is 131304221249. The reversal of 131304221232 is 232122403131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (131304221231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2712828 + ... + 2760804.

Almost surely, 2^131304221232 is an apocalyptic number.

131304221232 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 131304221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184475026176).

131304221232 is an abundant number, since it is smaller than the sum of its proper divisors (237645831120).

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

131304221232 is a wasteful number, since it uses less digits than its factorization.

131304221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48115 (or 48109 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131304221232 its reverse (232122403131), we get a palindrome (363426624363).

The spelling of 131304221232 in words is "one hundred thirty-one billion, three hundred four million, two hundred twenty-one thousand, two hundred thirty-two".