30450938121 has 16 divisors (see below), whose sum is σ = 46668105600. Its totient is φ = 19600603344.

The previous prime is 30450938081. The next prime is 30450938129. The reversal of 30450938121 is 12183905403.

It is not a de Polignac number, because 30450938121 - 2⁹ = 30450937609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30450938129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19444261 + ... + 19445826.

It is an arithmetic number, because the mean of its divisors is an integer number (2916756600).

Almost surely, 2^30450938121 is an apocalyptic number.

It is an amenable number.

30450938121 is a deficient number, since it is larger than the sum of its proper divisors (16217167479).

30450938121 is a wasteful number, since it uses less digits than its factorization.

30450938121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38890125 (or 38890119 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 30450938121 in words is "thirty billion, four hundred fifty million, nine hundred thirty-eight thousand, one hundred twenty-one".