21373602510703 has 2 divisors, whose sum is σ = 21373602510704. Its totient is φ = 21373602510702.

The previous prime is 21373602510569. The next prime is 21373602510907. The reversal of 21373602510703 is 30701520637312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21373602510703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21373602516703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10686801255351 + 10686801255352.

It is an arithmetic number, because the mean of its divisors is an integer number (10686801255352).

Almost surely, 2^{21373602510703} is an apocalyptic number.

21373602510703 is a deficient number, since it is larger than the sum of its proper divisors (1).

21373602510703 is an equidigital number, since it uses as much as digits as its factorization.

21373602510703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 21373602510703 in words is "twenty-one trillion, three hundred seventy-three billion, six hundred two million, five hundred ten thousand, seven hundred three".