30112032121 has 2 divisors, whose sum is σ = 30112032122. Its totient is φ = 30112032120.

The previous prime is 30112032113. The next prime is 30112032151. The reversal of 30112032121 is 12123021103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29668340025 + 443692096 = 172245^2 + 21064^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112032121 - 2³ = 30112032113 is a prime.

It is a super-2 number, since 2×30112032121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30112032095 and 30112032104.

It is not a weakly prime, because it can be changed into another prime (30112032151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056016060 + 15056016061.

It is an arithmetic number, because the mean of its divisors is an integer number (15056016061).

Almost surely, 2^30112032121 is an apocalyptic number.

It is an amenable number.

30112032121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112032121 is an equidigital number, since it uses as much as digits as its factorization.

30112032121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30112032121 its reverse (12123021103), we get a palindrome (42235053224).

The spelling of 30112032121 in words is "thirty billion, one hundred twelve million, thirty-two thousand, one hundred twenty-one".