21010403002 has 8 divisors (see below), whose sum is σ = 31568220000. Its totient is φ = 10487663004.

The previous prime is 21010402993. The next prime is 21010403017. The reversal of 21010403002 is 20030401012.

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

It is a super-2 number, since 2×21010403002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 8767752 + ... + 8770147.

It is an arithmetic number, because the mean of its divisors is an integer number (3946027500).

Almost surely, 2^21010403002 is an apocalyptic number.

21010403002 is a deficient number, since it is larger than the sum of its proper divisors (10557816998).

21010403002 is a wasteful number, since it uses less digits than its factorization.

21010403002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17538500.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21010403002 its reverse (20030401012), we get a palindrome (41040804014).

The spelling of 21010403002 in words is "twenty-one billion, ten million, four hundred three thousand, two".