21041231342103 has 48 divisors (see below), whose sum is σ = 35396333346816. Its totient is φ = 11795573920320.

The previous prime is 21041231342101. The next prime is 21041231342149. The reversal of 21041231342103 is 30124313214012.

21041231342103 is a `hidden beast` number, since 2 + 1 + 0 + 4 + 1 + 231 + 3 + 421 + 0 + 3 = 666.

It is not a de Polignac number, because 21041231342103 - 2¹ = 21041231342101 is a prime.

It is a super-2 number, since 2×21041231342103² (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 (21041231342101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5675925 + ... + 8619662.

It is an arithmetic number, because the mean of its divisors is an integer number (737423611392).

Almost surely, 2^{21041231342103} is an apocalyptic number.

21041231342103 is a deficient number, since it is larger than the sum of its proper divisors (14355102004713).

21041231342103 is a wasteful number, since it uses less digits than its factorization.

21041231342103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14296044 (or 14296041 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 21041231342103 its reverse (30124313214012), we get a palindrome (51165544556115).

The spelling of 21041231342103 in words is "twenty-one trillion, forty-one billion, two hundred thirty-one million, three hundred forty-two thousand, one hundred three".