30103212321 has 48 divisors (see below), whose sum is σ = 54963277824. Its totient is φ = 15449450112.

The previous prime is 30103212319. The next prime is 30103212323. The reversal of 30103212321 is 12321230103.

30103212321 is a `hidden beast` number, since 30 + 103 + 212 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (30103212319) and next prime (30103212323).

It is not a de Polignac number, because 30103212321 - 2¹ = 30103212319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30103212294 and 30103212303.

It is not an unprimeable number, because it can be changed into a prime (30103212323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466401 + ... + 527006.

It is an arithmetic number, because the mean of its divisors is an integer number (1145068288).

Almost surely, 2^30103212321 is an apocalyptic number.

It is an amenable number.

30103212321 is a deficient number, since it is larger than the sum of its proper divisors (24860065503).

30103212321 is a wasteful number, since it uses less digits than its factorization.

30103212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993470 (or 993467 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30103212321 its reverse (12321230103), we get a palindrome (42424442424).

The spelling of 30103212321 in words is "thirty billion, one hundred three million, two hundred twelve thousand, three hundred twenty-one".