31242220003439 has 2 divisors, whose sum is σ = 31242220003440. Its totient is φ = 31242220003438.

The previous prime is 31242220003387. The next prime is 31242220003447. The reversal of 31242220003439 is 93430002224213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31242220003439 - 2¹² = 31242219999343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31242220003399 and 31242220003408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31242220003139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15621110001719 + 15621110001720.

It is an arithmetic number, because the mean of its divisors is an integer number (15621110001720).

Almost surely, 2^{31242220003439} is an apocalyptic number.

31242220003439 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242220003439 is an equidigital number, since it uses as much as digits as its factorization.

31242220003439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 31242220003439 in words is "thirty-one trillion, two hundred forty-two billion, two hundred twenty million, three thousand, four hundred thirty-nine".