21434122143412 has 48 divisors (see below), whose sum is σ = 41075132926464. Its totient is φ = 9705808476000.

The previous prime is 21434122143367. The next prime is 21434122143443.

21434122143412 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23122987 + ... + 24032077.

It is an arithmetic number, because the mean of its divisors is an integer number (855731935968).

Almost surely, 2^{21434122143412} is an apocalyptic number.

21434122143412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21434122143412 is a deficient number, since it is larger than the sum of its proper divisors (19641010783052).

21434122143412 is a wasteful number, since it uses less digits than its factorization.

21434122143412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911140 (or 911138 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

It can be divided in two parts, 2143412 and 2143412, that added together give a palindrome (4286824).

The spelling of 21434122143412 in words is "twenty-one trillion, four hundred thirty-four billion, one hundred twenty-two million, one hundred forty-three thousand, four hundred twelve".