21403014316303 has 2 divisors, whose sum is σ = 21403014316304. Its totient is φ = 21403014316302.

The previous prime is 21403014316301. The next prime is 21403014316417. The reversal of 21403014316303 is 30361341030412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21403014316303 - 2¹ = 21403014316301 is a prime.

Together with 21403014316301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21403014316301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10701507158151 + 10701507158152.

It is an arithmetic number, because the mean of its divisors is an integer number (10701507158152).

Almost surely, 2^{21403014316303} is an apocalyptic number.

21403014316303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21403014316303 is an equidigital number, since it uses as much as digits as its factorization.

21403014316303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 21403014316303 its reverse (30361341030412), we get a palindrome (51764355346715).

The spelling of 21403014316303 in words is "twenty-one trillion, four hundred three billion, fourteen million, three hundred sixteen thousand, three hundred three".