30121004929 has 2 divisors, whose sum is σ = 30121004930. Its totient is φ = 30121004928.

The previous prime is 30121004917. The next prime is 30121004971. The reversal of 30121004929 is 92940012103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23607707904 + 6513297025 = 153648^2 + 80705^2 .

It is a cyclic number.

It is not a de Polignac number, because 30121004929 - 2⁷ = 30121004801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30121004929.

It is not a weakly prime, because it can be changed into another prime (30121004989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060502464 + 15060502465.

It is an arithmetic number, because the mean of its divisors is an integer number (15060502465).

Almost surely, 2^30121004929 is an apocalyptic number.

It is an amenable number.

30121004929 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121004929 is an equidigital number, since it uses as much as digits as its factorization.

30121004929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 30121004929 in words is "thirty billion, one hundred twenty-one million, four thousand, nine hundred twenty-nine".