131321031302 has 4 divisors (see below), whose sum is σ = 196981546956. Its totient is φ = 65660515650.

The previous prime is 131321031241. The next prime is 131321031323. The reversal of 131321031302 is 203130123131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32830257824 + ... + 32830257827.

It is an arithmetic number, because the mean of its divisors is an integer number (49245386739).

Almost surely, 2^131321031302 is an apocalyptic number.

131321031302 is a deficient number, since it is larger than the sum of its proper divisors (65660515654).

131321031302 is an equidigital number, since it uses as much as digits as its factorization.

131321031302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65660515653.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131321031302 its reverse (203130123131), we get a palindrome (334451154433).

The spelling of 131321031302 in words is "one hundred thirty-one billion, three hundred twenty-one million, thirty-one thousand, three hundred two".