30988170481 has 2 divisors, whose sum is σ = 30988170482. Its totient is φ = 30988170480.

The previous prime is 30988170361. The next prime is 30988170527. The reversal of 30988170481 is 18407188903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27594525456 + 3393645025 = 166116^2 + 58255^2 .

It is a cyclic number.

It is not a de Polignac number, because 30988170481 - 2²⁹ = 30451299569 is a prime.

It is a super-2 number, since 2×30988170481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30988171481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15494085240 + 15494085241.

It is an arithmetic number, because the mean of its divisors is an integer number (15494085241).

Almost surely, 2^30988170481 is an apocalyptic number.

It is an amenable number.

30988170481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30988170481 is an equidigital number, since it uses as much as digits as its factorization.

30988170481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 30988170481 in words is "thirty billion, nine hundred eighty-eight million, one hundred seventy thousand, four hundred eighty-one".