30988170361 has 2 divisors, whose sum is σ = 30988170362. Its totient is φ = 30988170360.

The previous prime is 30988170337. The next prime is 30988170481. The reversal of 30988170361 is 16307188903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26221648761 + 4766521600 = 161931^2 + 69040^2 .

It is a cyclic number.

It is not a de Polignac number, because 30988170361 - 2²⁵ = 30954615929 is a prime.

It is not a weakly prime, because it can be changed into another prime (30988870361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15494085180 + 15494085181.

It is an arithmetic number, because the mean of its divisors is an integer number (15494085181).

Almost surely, 2^30988170361 is an apocalyptic number.

It is an amenable number.

30988170361 is a deficient number, since it is larger than the sum of its proper divisors (1).

30988170361 is an equidigital number, since it uses as much as digits as its factorization.

30988170361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 30988170361 in words is "thirty billion, nine hundred eighty-eight million, one hundred seventy thousand, three hundred sixty-one".