30003123021013 has 4 divisors (see below), whose sum is σ = 30003787160640. Its totient is φ = 30002458881388.

The previous prime is 30003123020861. The next prime is 30003123021019. The reversal of 30003123021013 is 31012032130003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30003123021013 - 2⁴¹ = 27804099765461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003123021019) 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, 332002045 + ... + 332092402.

It is an arithmetic number, because the mean of its divisors is an integer number (7500946790160).

Almost surely, 2^{30003123021013} is an apocalyptic number.

It is an amenable number.

30003123021013 is a deficient number, since it is larger than the sum of its proper divisors (664139627).

30003123021013 is an equidigital number, since it uses as much as digits as its factorization.

30003123021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664139626.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30003123021013 its reverse (31012032130003), we get a palindrome (61015155151016).

The spelling of 30003123021013 in words is "thirty trillion, three billion, one hundred twenty-three million, twenty-one thousand, thirteen".