21413121030103 has 4 divisors (see below), whose sum is σ = 23359768396488. Its totient is φ = 19466473663720.

The previous prime is 21413121030097. The next prime is 21413121030109. The reversal of 21413121030103 is 30103012131412.

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 (21413121030097) and next prime (21413121030109).

It is a cyclic number.

It is not a de Polignac number, because 21413121030103 - 2¹⁷ = 21413120899031 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 (21413121030109) 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, 973323683176 + ... + 973323683197.

It is an arithmetic number, because the mean of its divisors is an integer number (5839942099122).

Almost surely, 2^{21413121030103} is an apocalyptic number.

21413121030103 is a deficient number, since it is larger than the sum of its proper divisors (1946647366385).

21413121030103 is a wasteful number, since it uses less digits than its factorization.

21413121030103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946647366384.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21413121030103 its reverse (30103012131412), we get a palindrome (51516133161515).

The spelling of 21413121030103 in words is "twenty-one trillion, four hundred thirteen billion, one hundred twenty-one million, thirty thousand, one hundred three".