31730029379 has 2 divisors, whose sum is σ = 31730029380. Its totient is φ = 31730029378.

The previous prime is 31730029361. The next prime is 31730029459. The reversal of 31730029379 is 97392003713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31730029379 - 2²⁴ = 31713252163 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31730029319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15865014689 + 15865014690.

It is an arithmetic number, because the mean of its divisors is an integer number (15865014690).

Almost surely, 2^31730029379 is an apocalyptic number.

31730029379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31730029379 is an equidigital number, since it uses as much as digits as its factorization.

31730029379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 44.

The spelling of 31730029379 in words is "thirty-one billion, seven hundred thirty million, twenty-nine thousand, three hundred seventy-nine".