30151121 has 36 divisors (see below), whose sum is σ = 41557104. Its totient is φ = 21621600.

The previous prime is 30151067. The next prime is 30151123. The reversal of 30151121 is 12115103.

It is not a de Polignac number, because 30151121 - 2²² = 25956817 is a prime.

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 = 30151096 and 30151105.

It is not an unprimeable number, because it can be changed into a prime (30151123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90926 + ... + 91256.

It is an arithmetic number, because the mean of its divisors is an integer number (1154364).

Almost surely, 2^30151121 is an apocalyptic number.

It is an amenable number.

30151121 is a deficient number, since it is larger than the sum of its proper divisors (11405983).

30151121 is a wasteful number, since it uses less digits than its factorization.

30151121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 30151121 is about 5491.0036423226. The cubic root of 30151121 is about 311.2441192848.

Adding to 30151121 its reverse (12115103), we get a palindrome (42266224).

It can be divided in two parts, 30 and 151121, that added together give a palindrome (151151).

The spelling of 30151121 in words is "thirty million, one hundred fifty-one thousand, one hundred twenty-one".