131331320202 has 16 divisors (see below), whose sum is σ = 262680005952. Its totient is φ = 43774212480.

The previous prime is 131331320189. The next prime is 131331320221. The reversal of 131331320202 is 202023133131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624199 + ... + 807642.

It is an arithmetic number, because the mean of its divisors is an integer number (16417500372).

Almost surely, 2^131331320202 is an apocalyptic number.

131331320202 is an abundant number, since it is smaller than the sum of its proper divisors (131348685750).

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

131331320202 is a wasteful number, since it uses less digits than its factorization.

131331320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447133.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131331320202 its reverse (202023133131), we get a palindrome (333354453333).

The spelling of 131331320202 in words is "one hundred thirty-one billion, three hundred thirty-one million, three hundred twenty thousand, two hundred two".