131020220263 has 2 divisors, whose sum is σ = 131020220264. Its totient is φ = 131020220262.

The previous prime is 131020220257. The next prime is 131020220321. The reversal of 131020220263 is 362022020131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131020220263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020220063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510110131 + 65510110132.

It is an arithmetic number, because the mean of its divisors is an integer number (65510110132).

Almost surely, 2^131020220263 is an apocalyptic number.

131020220263 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020220263 is an equidigital number, since it uses as much as digits as its factorization.

131020220263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131020220263 its reverse (362022020131), we get a palindrome (493042240394).

The spelling of 131020220263 in words is "one hundred thirty-one billion, twenty million, two hundred twenty thousand, two hundred sixty-three".