21314201043 has 4 divisors (see below), whose sum is σ = 28418934728. Its totient is φ = 14209467360.

The previous prime is 21314201023. The next prime is 21314201089. The reversal of 21314201043 is 34010241312.

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

It is not a de Polignac number, because 21314201043 - 2⁶ = 21314200979 is a prime.

It is a super-2 number, since 2×21314201043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21314201023) 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, 3552366838 + ... + 3552366843.

It is an arithmetic number, because the mean of its divisors is an integer number (7104733682).

Almost surely, 2^21314201043 is an apocalyptic number.

21314201043 is a deficient number, since it is larger than the sum of its proper divisors (7104733685).

21314201043 is an equidigital number, since it uses as much as digits as its factorization.

21314201043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104733684.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21314201043 its reverse (34010241312), we get a palindrome (55324442355).

The spelling of 21314201043 in words is "twenty-one billion, three hundred fourteen million, two hundred one thousand, forty-three".