21030113003 has 8 divisors (see below), whose sum is σ = 21259607040. Its totient is φ = 20801736360.

The previous prime is 21030112993. The next prime is 21030113009. The reversal of 21030113003 is 30031103012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21030113003 - 2³⁴ = 3850243819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030113009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241475 + ... + 316812.

It is an arithmetic number, because the mean of its divisors is an integer number (2657450880).

Almost surely, 2^21030113003 is an apocalyptic number.

21030113003 is a deficient number, since it is larger than the sum of its proper divisors (229494037).

21030113003 is a wasteful number, since it uses less digits than its factorization.

21030113003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558697.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21030113003 its reverse (30031103012), we get a palindrome (51061216015).

Subtracting 21030113003 from its reverse (30031103012), we obtain a palindrome (9000990009).

The spelling of 21030113003 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, three".