21013141323 has 16 divisors (see below), whose sum is σ = 28506984480. Its totient is φ = 13765457664.

The previous prime is 21013141321. The next prime is 21013141337. The reversal of 21013141323 is 32314131012.

It is not a de Polignac number, because 21013141323 - 2¹ = 21013141321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21013141323.

It is not an unprimeable number, because it can be changed into a prime (21013141321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119436 + ... + 237257.

It is an arithmetic number, because the mean of its divisors is an integer number (1781686530).

Almost surely, 2^21013141323 is an apocalyptic number.

21013141323 is a deficient number, since it is larger than the sum of its proper divisors (7493843157).

21013141323 is a wasteful number, since it uses less digits than its factorization.

21013141323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357038.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21013141323 its reverse (32314131012), we get a palindrome (53327272335).

The spelling of 21013141323 in words is "twenty-one billion, thirteen million, one hundred forty-one thousand, three hundred twenty-three".