30118381921007 has 2 divisors, whose sum is σ = 30118381921008. Its totient is φ = 30118381921006.

The previous prime is 30118381920973. The next prime is 30118381921009. The reversal of 30118381921007 is 70012918381103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30118381921007 - 2²⁰ = 30118380872431 is a prime.

It is a super-4 number, since 4×30118381921007⁴ (a number of 55 digits) contains 4444 as substring.

Together with 30118381921009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30118381921009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15059190960503 + 15059190960504.

It is an arithmetic number, because the mean of its divisors is an integer number (15059190960504).

Almost surely, 2^{30118381921007} is an apocalyptic number.

30118381921007 is a deficient number, since it is larger than the sum of its proper divisors (1).

30118381921007 is an equidigital number, since it uses as much as digits as its factorization.

30118381921007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 30118381921007 in words is "thirty trillion, one hundred eighteen billion, three hundred eighty-one million, nine hundred twenty-one thousand, seven".