30012211123 has 2 divisors, whose sum is σ = 30012211124. Its totient is φ = 30012211122.

The previous prime is 30012211091. The next prime is 30012211139. The reversal of 30012211123 is 32111221003.

It is an a-pointer prime, because the next prime (30012211139) can be obtained adding 30012211123 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30012211123 - 2⁵ = 30012211091 is a prime.

It is a super-2 number, since 2×30012211123² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30012211097 and 30012211106.

It is not a weakly prime, because it can be changed into another prime (30012211193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006105561 + 15006105562.

It is an arithmetic number, because the mean of its divisors is an integer number (15006105562).

Almost surely, 2^30012211123 is an apocalyptic number.

30012211123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012211123 is an equidigital number, since it uses as much as digits as its factorization.

30012211123 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 16.

Adding to 30012211123 its reverse (32111221003), we get a palindrome (62123432126).

The spelling of 30012211123 in words is "thirty billion, twelve million, two hundred eleven thousand, one hundred twenty-three".