30012145403 has 4 divisors (see below), whose sum is σ = 30140953128. Its totient is φ = 29883337680.

The previous prime is 30012145297. The next prime is 30012145409. The reversal of 30012145403 is 30454121003.

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

It is a cyclic number.

It is not a de Polignac number, because 30012145403 - 2³² = 25717178107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012145409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64403513 + ... + 64403978.

It is an arithmetic number, because the mean of its divisors is an integer number (7535238282).

Almost surely, 2^30012145403 is an apocalyptic number.

30012145403 is a deficient number, since it is larger than the sum of its proper divisors (128807725).

30012145403 is a wasteful number, since it uses less digits than its factorization.

30012145403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128807724.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 30012145403 its reverse (30454121003), we get a palindrome (60466266406).

The spelling of 30012145403 in words is "thirty billion, twelve million, one hundred forty-five thousand, four hundred three".