30232020989 has 2 divisors, whose sum is σ = 30232020990. Its totient is φ = 30232020988.

The previous prime is 30232020977. The next prime is 30232020991. The reversal of 30232020989 is 98902023203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24309487225 + 5922533764 = 155915^2 + 76958^2 .

It is a cyclic number.

It is not a de Polignac number, because 30232020989 - 2⁸ = 30232020733 is a prime.

Together with 30232020991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30232020919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116010494 + 15116010495.

It is an arithmetic number, because the mean of its divisors is an integer number (15116010495).

Almost surely, 2^30232020989 is an apocalyptic number.

It is an amenable number.

30232020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30232020989 is an equidigital number, since it uses as much as digits as its factorization.

30232020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 30232020989 in words is "thirty billion, two hundred thirty-two million, twenty thousand, nine hundred eighty-nine".