131232020201 has 2 divisors, whose sum is σ = 131232020202. Its totient is φ = 131232020200.

The previous prime is 131232020197. The next prime is 131232020261. The reversal of 131232020201 is 102020232131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98643105625 + 32588914576 = 314075^2 + 180524^2 .

It is a cyclic number.

It is not a de Polignac number, because 131232020201 - 2² = 131232020197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131232020201.

It is not a weakly prime, because it can be changed into another prime (131232020261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616010100 + 65616010101.

It is an arithmetic number, because the mean of its divisors is an integer number (65616010101).

Almost surely, 2^131232020201 is an apocalyptic number.

It is an amenable number.

131232020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131232020201 is an equidigital number, since it uses as much as digits as its factorization.

131232020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131232020201 its reverse (102020232131), we get a palindrome (233252252332).

The spelling of 131232020201 in words is "one hundred thirty-one billion, two hundred thirty-two million, twenty thousand, two hundred one".