21434102314405 has 16 divisors (see below), whose sum is σ = 28264000089024. Its totient is φ = 15474653822080.

The previous prime is 21434102314403. The next prime is 21434102314423. The reversal of 21434102314405 is 50441320143412.

It is not a de Polignac number, because 21434102314405 - 2¹ = 21434102314403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434102314403) 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, 1422295207 + ... + 1422310276.

It is an arithmetic number, because the mean of its divisors is an integer number (1766500005564).

Almost surely, 2^{21434102314405} is an apocalyptic number.

It is an amenable number.

21434102314405 is a deficient number, since it is larger than the sum of its proper divisors (6829897774619).

21434102314405 is a wasteful number, since it uses less digits than its factorization.

21434102314405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844605636.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 21434102314405 its reverse (50441320143412), we get a palindrome (71875422457817).

The spelling of 21434102314405 in words is "twenty-one trillion, four hundred thirty-four billion, one hundred two million, three hundred fourteen thousand, four hundred five".