30710121 has 8 divisors (see below), whose sum is σ = 44096640. Its totient is φ = 18898512.

The previous prime is 30710117. The next prime is 30710153. The reversal of 30710121 is 12101703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30710121 - 2² = 30710117 is a prime.

It is a super-2 number, since 2×30710121² = 1886223063669282, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30710121.

It is not an unprimeable number, because it can be changed into a prime (30710191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393681 + ... + 393758.

It is an arithmetic number, because the mean of its divisors is an integer number (5512080).

Almost surely, 2^30710121 is an apocalyptic number.

It is an amenable number.

30710121 is a deficient number, since it is larger than the sum of its proper divisors (13386519).

30710121 is a wasteful number, since it uses less digits than its factorization.

30710121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787455.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 30710121 is about 5541.6713182938. The cubic root of 30710121 is about 313.1558356651.

Adding to 30710121 its reverse (12101703), we get a palindrome (42811824).

The spelling of 30710121 in words is "thirty million, seven hundred ten thousand, one hundred twenty-one".