30012121011203 has 2 divisors, whose sum is σ = 30012121011204. Its totient is φ = 30012121011202.

The previous prime is 30012121011161. The next prime is 30012121011209. The reversal of 30012121011203 is 30211012121003.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30012121011203 is a prime.

It is not a weakly prime, because it can be changed into another prime (30012121011209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006060505601 + 15006060505602.

It is an arithmetic number, because the mean of its divisors is an integer number (15006060505602).

Almost surely, 2^{30012121011203} is an apocalyptic number.

30012121011203 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012121011203 is an equidigital number, since it uses as much as digits as its factorization.

30012121011203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30012121011203 its reverse (30211012121003), we get a palindrome (60223133132206).

The spelling of 30012121011203 in words is "thirty trillion, twelve billion, one hundred twenty-one million, eleven thousand, two hundred three".