30012421123 has 2 divisors, whose sum is σ = 30012421124. Its totient is φ = 30012421122.

The previous prime is 30012421099. The next prime is 30012421133. The reversal of 30012421123 is 32112421003.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30012421123 - 2¹³ = 30012412931 is a prime.

It is a super-2 number, since 2×30012421123² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30012421123.

It is not a weakly prime, because it can be changed into another prime (30012421133) 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 as a sum of consecutive naturals, namely, 15006210561 + 15006210562.

It is an arithmetic number, because the mean of its divisors is an integer number (15006210562).

Almost surely, 2^30012421123 is an apocalyptic number.

30012421123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012421123 is an equidigital number, since it uses as much as digits as its factorization.

30012421123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30012421123 its reverse (32112421003), we get a palindrome (62124842126).

The spelling of 30012421123 in words is "thirty billion, twelve million, four hundred twenty-one thousand, one hundred twenty-three".