21003001313030 has 32 divisors (see below), whose sum is σ = 41242934276640. Its totient is φ = 7637329624320.

The previous prime is 21003001313029. The next prime is 21003001313033. The reversal of 21003001313030 is 3031310030012.

It is a super-2 number, since 2×21003001313030² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003001313033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5298656 + ... + 8371484.

It is an arithmetic number, because the mean of its divisors is an integer number (1288841696145).

Almost surely, 2^{21003001313030} is an apocalyptic number.

21003001313030 is a deficient number, since it is larger than the sum of its proper divisors (20239932963610).

21003001313030 is a wasteful number, since it uses less digits than its factorization.

21003001313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134984.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21003001313030 its reverse (3031310030012), we get a palindrome (24034311343042).

The spelling of 21003001313030 in words is "twenty-one trillion, three billion, one million, three hundred thirteen thousand, thirty".