21340414203 has 8 divisors (see below), whose sum is σ = 28457510400. Its totient is φ = 14225130408.

The previous prime is 21340414171. The next prime is 21340414241. The reversal of 21340414203 is 30241404312.

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

It is not a de Polignac number, because 21340414203 - 2⁵ = 21340414171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21340414273) 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, 425383 + ... + 472896.

It is an arithmetic number, because the mean of its divisors is an integer number (3557188800).

Almost surely, 2^21340414203 is an apocalyptic number.

21340414203 is a deficient number, since it is larger than the sum of its proper divisors (7117096197).

21340414203 is an equidigital number, since it uses as much as digits as its factorization.

21340414203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906201.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21340414203 its reverse (30241404312), we get a palindrome (51581818515).

The spelling of 21340414203 in words is "twenty-one billion, three hundred forty million, four hundred fourteen thousand, two hundred three".