21514010231303 has 2 divisors, whose sum is σ = 21514010231304. Its totient is φ = 21514010231302.

The previous prime is 21514010231281. The next prime is 21514010231321. The reversal of 21514010231303 is 30313201041512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21514010231303 - 2³⁶ = 21445290754567 is a prime.

It is a super-2 number, since 2×21514010231303² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21514010231003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10757005115651 + 10757005115652.

It is an arithmetic number, because the mean of its divisors is an integer number (10757005115652).

Almost surely, 2^{21514010231303} is an apocalyptic number.

21514010231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21514010231303 is an equidigital number, since it uses as much as digits as its factorization.

21514010231303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 21514010231303 its reverse (30313201041512), we get a palindrome (51827211272815).

The spelling of 21514010231303 in words is "twenty-one trillion, five hundred fourteen billion, ten million, two hundred thirty-one thousand, three hundred three".