30031423 has 2 divisors, whose sum is σ = 30031424. Its totient is φ = 30031422.

The previous prime is 30031403. The next prime is 30031439. The reversal of 30031423 is 32413003.

It is an a-pointer prime, because the next prime (30031439) can be obtained adding 30031423 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30031423 - 2²¹ = 27934271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30031397 and 30031406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30031403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015711 + 15015712.

It is an arithmetic number, because the mean of its divisors is an integer number (15015712).

Almost surely, 2^30031423 is an apocalyptic number.

30031423 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031423 is an equidigital number, since it uses as much as digits as its factorization.

30031423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30031423 is about 5480.0933386212. The cubic root of 30031423 is about 310.8317000364.

Adding to 30031423 its reverse (32413003), we get a palindrome (62444426).

The spelling of 30031423 in words is "thirty million, thirty-one thousand, four hundred twenty-three".