30102013121 has 4 divisors (see below), whose sum is σ = 30103287744. Its totient is φ = 30100738500.

The previous prime is 30102013093. The next prime is 30102013127. The reversal of 30102013121 is 12131020103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30102013121 - 2⁶ = 30102013057 is a prime.

It is a super-2 number, since 2×30102013121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30102013096 and 30102013105.

It is not an unprimeable number, because it can be changed into a prime (30102013127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601205 + ... + 649346.

It is an arithmetic number, because the mean of its divisors is an integer number (7525821936).

Almost surely, 2^30102013121 is an apocalyptic number.

It is an amenable number.

30102013121 is a deficient number, since it is larger than the sum of its proper divisors (1274623).

30102013121 is a wasteful number, since it uses less digits than its factorization.

30102013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274622.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30102013121 its reverse (12131020103), we get a palindrome (42233033224).

The spelling of 30102013121 in words is "thirty billion, one hundred two million, thirteen thousand, one hundred twenty-one".