30012120220073 has 2 divisors, whose sum is σ = 30012120220074. Its totient is φ = 30012120220072.

The previous prime is 30012120220067. The next prime is 30012120220139. The reversal of 30012120220073 is 37002202121003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18980076831769 + 11032043388304 = 4356613^2 + 3321452^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012120220073 - 2²⁴ = 30012103442857 is a prime.

It is a super-2 number, since 2×30012120220073² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30012120220373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006060110036 + 15006060110037.

It is an arithmetic number, because the mean of its divisors is an integer number (15006060110037).

Almost surely, 2^{30012120220073} is an apocalyptic number.

It is an amenable number.

30012120220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012120220073 is an equidigital number, since it uses as much as digits as its factorization.

30012120220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 30012120220073 its reverse (37002202121003), we get a palindrome (67014322341076).

The spelling of 30012120220073 in words is "thirty trillion, twelve billion, one hundred twenty million, two hundred twenty thousand, seventy-three".