30310220121 has 8 divisors (see below), whose sum is σ = 40422338400. Its totient is φ = 20202457632.

The previous prime is 30310220113. The next prime is 30310220131. The reversal of 30310220121 is 12102201303.

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

It is not a de Polignac number, because 30310220121 - 2³ = 30310220113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30310220121.

It is not an unprimeable number, because it can be changed into a prime (30310220131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072675 + ... + 1100568.

It is an arithmetic number, because the mean of its divisors is an integer number (5052792300).

Almost surely, 2^30310220121 is an apocalyptic number.

It is an amenable number.

30310220121 is a deficient number, since it is larger than the sum of its proper divisors (10112118279).

30310220121 is a wasteful number, since it uses less digits than its factorization.

30310220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177895.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30310220121 its reverse (12102201303), we get a palindrome (42412421424).

The spelling of 30310220121 in words is "thirty billion, three hundred ten million, two hundred twenty thousand, one hundred twenty-one".