30212398991 has 2 divisors, whose sum is σ = 30212398992. Its totient is φ = 30212398990.

The previous prime is 30212398927. The next prime is 30212398999. The reversal of 30212398991 is 19989321203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30212398991 - 2⁶ = 30212398927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212398999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106199495 + 15106199496.

It is an arithmetic number, because the mean of its divisors is an integer number (15106199496).

Almost surely, 2^30212398991 is an apocalyptic number.

30212398991 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212398991 is an equidigital number, since it uses as much as digits as its factorization.

30212398991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 30212398991 in words is "thirty billion, two hundred twelve million, three hundred ninety-eight thousand, nine hundred ninety-one".