131320202120210 has 16 divisors (see below), whose sum is σ = 236415885135192. Its totient is φ = 52519298332800.

The previous prime is 131320202120201. The next prime is 131320202120227. The reversal of 131320202120210 is 12021202023131.

It can be written as a sum of positive squares in 4 ways, for example, as 60964660992169 + 70355541128041 = 7807987^2 + 8387821^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097751611 + ... + 1097871230.

Almost surely, 2^{131320202120210} is an apocalyptic number.

131320202120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131320202120210 is a deficient number, since it is larger than the sum of its proper divisors (105095683014982).

131320202120210 is a wasteful number, since it uses less digits than its factorization.

131320202120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195628829.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131320202120210 its reverse (12021202023131), we get a palindrome (143341404143341).

The spelling of 131320202120210 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred two million, one hundred twenty thousand, two hundred ten".