21003102341 has 16 divisors (see below), whose sum is σ = 23877504000. Its totient is φ = 18314382528.

The previous prime is 21003102331. The next prime is 21003102359. The reversal of 21003102341 is 14320130012.

It is a de Polignac number, because none of the positive numbers 2^k-21003102341 is a prime.

It is a super-2 number, since 2×21003102341² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003102311) 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 15 ways as a sum of consecutive naturals, for example, 35621 + ... + 208026.

It is an arithmetic number, because the mean of its divisors is an integer number (1492344000).

Almost surely, 2^21003102341 is an apocalyptic number.

It is an amenable number.

21003102341 is a deficient number, since it is larger than the sum of its proper divisors (2874401659).

21003102341 is a wasteful number, since it uses less digits than its factorization.

21003102341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244028.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21003102341 its reverse (14320130012), we get a palindrome (35323232353).

The spelling of 21003102341 in words is "twenty-one billion, three million, one hundred two thousand, three hundred forty-one".