30232112121 has 12 divisors (see below), whose sum is σ = 43700709780. Its totient is φ = 20139924480.

The previous prime is 30232112093. The next prime is 30232112161. The reversal of 30232112121 is 12121123203.

30232112121 is a `hidden beast` number, since 302 + 321 + 1 + 21 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11240240400 + 18991871721 = 106020^2 + 137811^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30232112121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30232112094 and 30232112103.

It is not an unprimeable number, because it can be changed into a prime (30232112161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1221816 + ... + 1246313.

It is an arithmetic number, because the mean of its divisors is an integer number (3641725815).

Almost surely, 2^30232112121 is an apocalyptic number.

It is an amenable number.

30232112121 is a deficient number, since it is larger than the sum of its proper divisors (13468597659).

30232112121 is a wasteful number, since it uses less digits than its factorization.

30232112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469496 (or 2469493 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30232112121 its reverse (12121123203), we get a palindrome (42353235324).

The spelling of 30232112121 in words is "thirty billion, two hundred thirty-two million, one hundred twelve thousand, one hundred twenty-one".