30120213031213 has 2 divisors, whose sum is σ = 30120213031214. Its totient is φ = 30120213031212.

The previous prime is 30120213031177. The next prime is 30120213031247. The reversal of 30120213031213 is 31213031202103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23009654798244 + 7110558232969 = 4796838^2 + 2666563^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120213031213 - 2³⁷ = 29982774077741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30120213031253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060106515606 + 15060106515607.

It is an arithmetic number, because the mean of its divisors is an integer number (15060106515607).

Almost surely, 2^{30120213031213} is an apocalyptic number.

It is an amenable number.

30120213031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120213031213 is an equidigital number, since it uses as much as digits as its factorization.

30120213031213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30120213031213 its reverse (31213031202103), we get a palindrome (61333244233316).

The spelling of 30120213031213 in words is "thirty trillion, one hundred twenty billion, two hundred thirteen million, thirty-one thousand, two hundred thirteen".