21410334143 has 8 divisors (see below), whose sum is σ = 23361564240. Its totient is φ = 19459910080.

The previous prime is 21410334137. The next prime is 21410334149. The reversal of 21410334143 is 34143301412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21410334137) and next prime (21410334149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21410334143 is a prime.

It is a super-2 number, since 2×21410334143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410334149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145280 + ... + 252837.

It is an arithmetic number, because the mean of its divisors is an integer number (2920195530).

Almost surely, 2^21410334143 is an apocalyptic number.

21410334143 is a deficient number, since it is larger than the sum of its proper divisors (1951230097).

21410334143 is a wasteful number, since it uses less digits than its factorization.

21410334143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403017.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21410334143 its reverse (34143301412), we get a palindrome (55553635555).

It can be divided in two parts, 21410 and 334143, that added together give a palindrome (355553).

The spelling of 21410334143 in words is "twenty-one billion, four hundred ten million, three hundred thirty-four thousand, one hundred forty-three".