30488389331 has 2 divisors, whose sum is σ = 30488389332. Its totient is φ = 30488389330.

The previous prime is 30488389319. The next prime is 30488389333. The reversal of 30488389331 is 13398388403.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30488389331 is a prime.

It is a super-2 number, since 2×30488389331² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 30488389333, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30488389331.

It is not a weakly prime, because it can be changed into another prime (30488389333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15244194665 + 15244194666.

It is an arithmetic number, because the mean of its divisors is an integer number (15244194666).

Almost surely, 2^30488389331 is an apocalyptic number.

30488389331 is a deficient number, since it is larger than the sum of its proper divisors (1).

30488389331 is an equidigital number, since it uses as much as digits as its factorization.

30488389331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 30488389331 in words is "thirty billion, four hundred eighty-eight million, three hundred eighty-nine thousand, three hundred thirty-one".