30642103 has 2 divisors, whose sum is σ = 30642104. Its totient is φ = 30642102.

The previous prime is 30642091. The next prime is 30642107. The reversal of 30642103 is 30124603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30642103 - 2¹⁷ = 30511031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30642107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321051 + 15321052.

It is an arithmetic number, because the mean of its divisors is an integer number (15321052).

Almost surely, 2^30642103 is an apocalyptic number.

30642103 is a deficient number, since it is larger than the sum of its proper divisors (1).

30642103 is an equidigital number, since it uses as much as digits as its factorization.

30642103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30642103 is about 5535.5309591764. The cubic root of 30642103 is about 312.9244680915.

Adding to 30642103 its reverse (30124603), we get a palindrome (60766706).

The spelling of 30642103 in words is "thirty million, six hundred forty-two thousand, one hundred three".