30125143221 has 8 divisors (see below), whose sum is σ = 40168212000. Its totient is φ = 20082751632.

The previous prime is 30125143177. The next prime is 30125143259. The reversal of 30125143221 is 12234152103.

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

It is not a de Polignac number, because 30125143221 - 2²¹ = 30123046069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30125143191 and 30125143200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125144221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54346 + ... + 251403.

It is an arithmetic number, because the mean of its divisors is an integer number (5021026500).

Almost surely, 2^30125143221 is an apocalyptic number.

It is an amenable number.

30125143221 is a deficient number, since it is larger than the sum of its proper divisors (10043068779).

30125143221 is a wasteful number, since it uses less digits than its factorization.

30125143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338595.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 30125143221 its reverse (12234152103), we get a palindrome (42359295324).

The spelling of 30125143221 in words is "thirty billion, one hundred twenty-five million, one hundred forty-three thousand, two hundred twenty-one".