131232220302 has 16 divisors (see below), whose sum is σ = 262476428112. Its totient is φ = 43742075520.

The previous prime is 131232220291. The next prime is 131232220303. The reversal of 131232220302 is 203022232131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131232220303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353899 + ... + 622662.

It is an arithmetic number, because the mean of its divisors is an integer number (16404776757).

Almost surely, 2^131232220302 is an apocalyptic number.

131232220302 is an abundant number, since it is smaller than the sum of its proper divisors (131244207810).

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

131232220302 is a wasteful number, since it uses less digits than its factorization.

131232220302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998963.

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

Adding to 131232220302 its reverse (203022232131), we get a palindrome (334254452433).

The spelling of 131232220302 in words is "one hundred thirty-one billion, two hundred thirty-two million, two hundred twenty thousand, three hundred two".