102003421341021 has 16 divisors (see below), whose sum is σ = 139886683400064. Its totient is φ = 66066649631424.

The previous prime is 102003421341007. The next prime is 102003421341067. The reversal of 102003421341021 is 120143124300201.

It is not a de Polignac number, because 102003421341021 - 2¹³ = 102003421332829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102003421340982 and 102003421341000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102003421351021) 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, 678617425 + ... + 678767718.

It is an arithmetic number, because the mean of its divisors is an integer number (8742917712504).

Almost surely, 2^{102003421341021} is an apocalyptic number.

It is an amenable number.

102003421341021 is a deficient number, since it is larger than the sum of its proper divisors (37883262059043).

102003421341021 is a wasteful number, since it uses less digits than its factorization.

102003421341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357385860.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 102003421341021 its reverse (120143124300201), we get a palindrome (222146545641222).

The spelling of 102003421341021 in words is "one hundred two trillion, three billion, four hundred twenty-one million, three hundred forty-one thousand, twenty-one".