30321431017 has 2 divisors, whose sum is σ = 30321431018. Its totient is φ = 30321431016.

The previous prime is 30321431003. The next prime is 30321431027. The reversal of 30321431017 is 71013412303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29992697856 + 328733161 = 173184^2 + 18131^2 .

It is a cyclic number.

It is not a de Polignac number, because 30321431017 - 2⁷ = 30321430889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30321430982 and 30321431000.

It is not a weakly prime, because it can be changed into another prime (30321431027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160715508 + 15160715509.

It is an arithmetic number, because the mean of its divisors is an integer number (15160715509).

Almost surely, 2^30321431017 is an apocalyptic number.

It is an amenable number.

30321431017 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321431017 is an equidigital number, since it uses as much as digits as its factorization.

30321431017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 30321431017 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-one thousand, seventeen".