30118920247 has 24 divisors (see below), whose sum is σ = 34553796480. Its totient is φ = 26150492160.

The previous prime is 30118920229. The next prime is 30118920269. The reversal of 30118920247 is 74202981103.

It is not a de Polignac number, because 30118920247 - 2²⁷ = 29984702519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30118920287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8964954 + ... + 8968312.

It is an arithmetic number, because the mean of its divisors is an integer number (1439741520).

Almost surely, 2^30118920247 is an apocalyptic number.

30118920247 is a deficient number, since it is larger than the sum of its proper divisors (4434876233).

30118920247 is a wasteful number, since it uses less digits than its factorization.

30118920247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523 (or 6510 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 30118920247 in words is "thirty billion, one hundred eighteen million, nine hundred twenty thousand, two hundred forty-seven".