21436114103 has 4 divisors (see below), whose sum is σ = 22368119088. Its totient is φ = 20504109120.

The previous prime is 21436114097. The next prime is 21436114109. The reversal of 21436114103 is 30141163412.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (21436114097) and next prime (21436114109).

It is a cyclic number.

It is not a de Polignac number, because 21436114103 - 2²⁰ = 21435065527 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 (21436114109) 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, 466002458 + ... + 466002503.

It is an arithmetic number, because the mean of its divisors is an integer number (5592029772).

Almost surely, 2^21436114103 is an apocalyptic number.

21436114103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21436114103 is a deficient number, since it is larger than the sum of its proper divisors (932004985).

21436114103 is an equidigital number, since it uses as much as digits as its factorization.

21436114103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932004984.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 21436114103 its reverse (30141163412), we get a palindrome (51577277515).

The spelling of 21436114103 in words is "twenty-one billion, four hundred thirty-six million, one hundred fourteen thousand, one hundred three".