20612730003 has 4 divisors (see below), whose sum is σ = 27483640008. Its totient is φ = 13741820000.

The previous prime is 20612729999. The next prime is 20612730037. The reversal of 20612730003 is 30003721602.

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 20612730003 - 2² = 20612729999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20612710003) 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 in 3 ways as a sum of consecutive naturals, for example, 3435454998 + ... + 3435455003.

It is an arithmetic number, because the mean of its divisors is an integer number (6870910002).

Almost surely, 2^20612730003 is an apocalyptic number.

20612730003 is a deficient number, since it is larger than the sum of its proper divisors (6870910005).

20612730003 is an equidigital number, since it uses as much as digits as its factorization.

20612730003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870910004.

The product of its (nonzero) digits is 1512, while the sum is 24.

The spelling of 20612730003 in words is "twenty billion, six hundred twelve million, seven hundred thirty thousand, three".