30573121 has 4 divisors (see below), whose sum is σ = 30775744. Its totient is φ = 30370500.

The previous prime is 30573113. The next prime is 30573131. The reversal of 30573121 is 12137503.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12137503 = 7 ⋅1733929.

It is a cyclic number.

It is not a de Polignac number, because 30573121 - 2³ = 30573113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30573092 and 30573101.

It is not an unprimeable number, because it can be changed into a prime (30573131) 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, 101085 + ... + 101386.

It is an arithmetic number, because the mean of its divisors is an integer number (7693936).

Almost surely, 2^30573121 is an apocalyptic number.

It is an amenable number.

30573121 is a deficient number, since it is larger than the sum of its proper divisors (202623).

30573121 is a wasteful number, since it uses less digits than its factorization.

30573121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202622.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 30573121 is about 5529.2966098772. The cubic root of 30573121 is about 312.6894714453.

The spelling of 30573121 in words is "thirty million, five hundred seventy-three thousand, one hundred twenty-one".