30102002321 has 2 divisors, whose sum is σ = 30102002322. Its totient is φ = 30102002320.

The previous prime is 30102002317. The next prime is 30102002363. The reversal of 30102002321 is 12320020103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23416650625 + 6685351696 = 153025^2 + 81764^2 .

It is a cyclic number.

It is not a de Polignac number, because 30102002321 - 2² = 30102002317 is a prime.

It is a super-2 number, since 2×30102002321² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30102002296 and 30102002305.

It is not a weakly prime, because it can be changed into another prime (30102002521) 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 as a sum of consecutive naturals, namely, 15051001160 + 15051001161.

It is an arithmetic number, because the mean of its divisors is an integer number (15051001161).

Almost surely, 2^30102002321 is an apocalyptic number.

It is an amenable number.

30102002321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102002321 is an equidigital number, since it uses as much as digits as its factorization.

30102002321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30102002321 its reverse (12320020103), we get a palindrome (42422022424).

The spelling of 30102002321 in words is "thirty billion, one hundred two million, two thousand, three hundred twenty-one".