21414031140223 has 4 divisors (see below), whose sum is σ = 21414096169488. Its totient is φ = 21413966110960.

The previous prime is 21414031140179. The next prime is 21414031140239. The reversal of 21414031140223 is 32204113041412.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21414031140223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21414031140191 and 21414031140200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414031140323) 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, 32018158 + ... + 32680123.

It is an arithmetic number, because the mean of its divisors is an integer number (5353524042372).

Almost surely, 2^{21414031140223} is an apocalyptic number.

21414031140223 is a deficient number, since it is larger than the sum of its proper divisors (65029265).

21414031140223 is an equidigital number, since it uses as much as digits as its factorization.

21414031140223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65029264.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21414031140223 its reverse (32204113041412), we get a palindrome (53618144181635).

The spelling of 21414031140223 in words is "twenty-one trillion, four hundred fourteen billion, thirty-one million, one hundred forty thousand, two hundred twenty-three".