30123432103 has 4 divisors (see below), whose sum is σ = 30421684008. Its totient is φ = 29825180200.

The previous prime is 30123432083. The next prime is 30123432161.

30123432103 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123432103 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123432193) 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 in 3 ways as a sum of consecutive naturals, for example, 149125801 + ... + 149126002.

It is an arithmetic number, because the mean of its divisors is an integer number (7605421002).

Almost surely, 2^30123432103 is an apocalyptic number.

30123432103 is a deficient number, since it is larger than the sum of its proper divisors (298251905).

30123432103 is a wasteful number, since it uses less digits than its factorization.

30123432103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298251904.

The product of its (nonzero) digits is 1296, while the sum is 22.

The spelling of 30123432103 in words is "thirty billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred three".