21114322403 has 2 divisors, whose sum is σ = 21114322404. Its totient is φ = 21114322402.

The previous prime is 21114322399. The next prime is 21114322421. The reversal of 21114322403 is 30422341112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21114322403 - 2² = 21114322399 is a prime.

It is a super-2 number, since 2×21114322403² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21114322003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557161201 + 10557161202.

It is an arithmetic number, because the mean of its divisors is an integer number (10557161202).

Almost surely, 2^21114322403 is an apocalyptic number.

21114322403 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114322403 is an equidigital number, since it uses as much as digits as its factorization.

21114322403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21114322403 its reverse (30422341112), we get a palindrome (51536663515).

The spelling of 21114322403 in words is "twenty-one billion, one hundred fourteen million, three hundred twenty-two thousand, four hundred three".