30213241997 has 2 divisors, whose sum is σ = 30213241998. Its totient is φ = 30213241996.

The previous prime is 30213241987. The next prime is 30213242011. The reversal of 30213241997 is 79914231203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15891375721 + 14321866276 = 126061^2 + 119674^2 .

It is an emirp because it is prime and its reverse (79914231203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30213241997 - 2¹⁴ = 30213225613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213241987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106620998 + 15106620999.

It is an arithmetic number, because the mean of its divisors is an integer number (15106620999).

Almost surely, 2^30213241997 is an apocalyptic number.

It is an amenable number.

30213241997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213241997 is an equidigital number, since it uses as much as digits as its factorization.

30213241997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 30213241997 in words is "thirty billion, two hundred thirteen million, two hundred forty-one thousand, nine hundred ninety-seven".