21214036013143 has 4 divisors (see below), whose sum is σ = 21214789621488. Its totient is φ = 21213282404800.

The previous prime is 21214036013141. The next prime is 21214036013147. The reversal of 21214036013143 is 34131063041212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21214036013143 - 2¹ = 21214036013141 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 (21214036013141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376761946 + ... + 376818247.

It is an arithmetic number, because the mean of its divisors is an integer number (5303697405372).

Almost surely, 2^{21214036013143} is an apocalyptic number.

21214036013143 is a deficient number, since it is larger than the sum of its proper divisors (753608345).

21214036013143 is an equidigital number, since it uses as much as digits as its factorization.

21214036013143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753608344.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 21214036013143 its reverse (34131063041212), we get a palindrome (55345099054355).

The spelling of 21214036013143 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, thirteen thousand, one hundred forty-three".