21434010333103 has 4 divisors (see below), whose sum is σ = 21436732811488. Its totient is φ = 21431287854720.

The previous prime is 21434010333091. The next prime is 21434010333143. The reversal of 21434010333103 is 30133301043412.

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

It is a cyclic number.

It is not a de Polignac number, because 21434010333103 - 2¹³ = 21434010324911 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 (21434010333143) 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, 1361227383 + ... + 1361243128.

It is an arithmetic number, because the mean of its divisors is an integer number (5359183202872).

Almost surely, 2^{21434010333103} is an apocalyptic number.

21434010333103 is a deficient number, since it is larger than the sum of its proper divisors (2722478385).

21434010333103 is an equidigital number, since it uses as much as digits as its factorization.

21434010333103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722478384.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21434010333103 its reverse (30133301043412), we get a palindrome (51567311376515).

The spelling of 21434010333103 in words is "twenty-one trillion, four hundred thirty-four billion, ten million, three hundred thirty-three thousand, one hundred three".