131012020213 has 2 divisors, whose sum is σ = 131012020214. Its totient is φ = 131012020212.

The previous prime is 131012020199. The next prime is 131012020273. The reversal of 131012020213 is 312020210131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127447572004 + 3564448209 = 356998^2 + 59703^2 .

It is a cyclic number.

It is not a de Polignac number, because 131012020213 - 2²⁵ = 130978465781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131012020273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65506010106 + 65506010107.

It is an arithmetic number, because the mean of its divisors is an integer number (65506010107).

Almost surely, 2^131012020213 is an apocalyptic number.

It is an amenable number.

131012020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131012020213 is an equidigital number, since it uses as much as digits as its factorization.

131012020213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131012020213 its reverse (312020210131), we get a palindrome (443032230344).

The spelling of 131012020213 in words is "one hundred thirty-one billion, twelve million, twenty thousand, two hundred thirteen".