31728746003 has 2 divisors, whose sum is σ = 31728746004. Its totient is φ = 31728746002.

The previous prime is 31728745921. The next prime is 31728746011. The reversal of 31728746003 is 30064782713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31728746003 - 2¹⁰ = 31728744979 is a prime.

It is not a weakly prime, because it can be changed into another prime (31728746033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15864373001 + 15864373002.

It is an arithmetic number, because the mean of its divisors is an integer number (15864373002).

Almost surely, 2^31728746003 is an apocalyptic number.

31728746003 is a deficient number, since it is larger than the sum of its proper divisors (1).

31728746003 is an equidigital number, since it uses as much as digits as its factorization.

31728746003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 31728746003 in words is "thirty-one billion, seven hundred twenty-eight million, seven hundred forty-six thousand, three".