30421424121 has 16 divisors (see below), whose sum is σ = 45190821888. Its totient is φ = 18044944400.

The previous prime is 30421424107. The next prime is 30421424123. The reversal of 30421424121 is 12142412403.

It is a cyclic number.

It is not a de Polignac number, because 30421424121 - 2⁶ = 30421424057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30421424091 and 30421424100.

It is not an unprimeable number, because it can be changed into a prime (30421424123) 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, 9805485 + ... + 9808586.

It is an arithmetic number, because the mean of its divisors is an integer number (2824426368).

Almost surely, 2^30421424121 is an apocalyptic number.

It is an amenable number.

30421424121 is a deficient number, since it is larger than the sum of its proper divisors (14769397767).

30421424121 is a wasteful number, since it uses less digits than its factorization.

30421424121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19614132.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 30421424121 its reverse (12142412403), we get a palindrome (42563836524).

The spelling of 30421424121 in words is "thirty billion, four hundred twenty-one million, four hundred twenty-four thousand, one hundred twenty-one".