131333233330021 has 2 divisors, whose sum is σ = 131333233330022. Its totient is φ = 131333233330020.

The previous prime is 131333233329937. The next prime is 131333233330067. The reversal of 131333233330021 is 120033332333131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86117843200900 + 45215390129121 = 9279970^2 + 6724239^2 .

It is a cyclic number.

It is not a de Polignac number, because 131333233330021 - 2¹¹ = 131333233327973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333233334021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666616665010 + 65666616665011.

It is an arithmetic number, because the mean of its divisors is an integer number (65666616665011).

Almost surely, 2^{131333233330021} is an apocalyptic number.

It is an amenable number.

131333233330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333233330021 is an equidigital number, since it uses as much as digits as its factorization.

131333233330021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 31.

Adding to 131333233330021 its reverse (120033332333131), we get a palindrome (251366565663152).

The spelling of 131333233330021 in words is "one hundred thirty-one trillion, three hundred thirty-three billion, two hundred thirty-three million, three hundred thirty thousand, twenty-one".