30213208122949 has 2 divisors, whose sum is σ = 30213208122950. Its totient is φ = 30213208122948.

The previous prime is 30213208122917. The next prime is 30213208122991. The reversal of 30213208122949 is 94922180231203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27523139062500 + 2690069060449 = 5246250^2 + 1640143^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213208122949 - 2⁵ = 30213208122917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30213208122899 and 30213208122908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213208822949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106604061474 + 15106604061475.

It is an arithmetic number, because the mean of its divisors is an integer number (15106604061475).

Almost surely, 2^{30213208122949} is an apocalyptic number.

It is an amenable number.

30213208122949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213208122949 is an equidigital number, since it uses as much as digits as its factorization.

30213208122949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 30213208122949 in words is "thirty trillion, two hundred thirteen billion, two hundred eight million, one hundred twenty-two thousand, nine hundred forty-nine".