202131443122439 has 2 divisors, whose sum is σ = 202131443122440. Its totient is φ = 202131443122438.

The previous prime is 202131443122423. The next prime is 202131443122481. The reversal of 202131443122439 is 934221344131202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202131443122439 - 2⁴ = 202131443122423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202131443122396 and 202131443122405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202131443124439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101065721561219 + 101065721561220.

It is an arithmetic number, because the mean of its divisors is an integer number (101065721561220).

Almost surely, 2^{202131443122439} is an apocalyptic number.

202131443122439 is a deficient number, since it is larger than the sum of its proper divisors (1).

202131443122439 is an equidigital number, since it uses as much as digits as its factorization.

202131443122439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 202131443122439 in words is "two hundred two trillion, one hundred thirty-one billion, four hundred forty-three million, one hundred twenty-two thousand, four hundred thirty-nine".