21003342410 has 32 divisors (see below), whose sum is σ = 40135642560. Its totient is φ = 7886253312.

The previous prime is 21003342403. The next prime is 21003342413. The reversal of 21003342410 is 1424330012.

It is a super-2 number, since 2×21003342410² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003342413) 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, 98564 + ... + 227423.

It is an arithmetic number, because the mean of its divisors is an integer number (1254238830).

Almost surely, 2^21003342410 is an apocalyptic number.

21003342410 is a deficient number, since it is larger than the sum of its proper divisors (19132300150).

21003342410 is a wasteful number, since it uses less digits than its factorization.

21003342410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326390.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21003342410 its reverse (1424330012), we get a palindrome (22427672422).

The spelling of 21003342410 in words is "twenty-one billion, three million, three hundred forty-two thousand, four hundred ten".