21302140838707 has 2 divisors, whose sum is σ = 21302140838708. Its totient is φ = 21302140838706.

The previous prime is 21302140838683. The next prime is 21302140838773. The reversal of 21302140838707 is 70783804120312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302140838707 is a prime.

It is a super-3 number, since 3×21302140838707³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21302140868707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651070419353 + 10651070419354.

It is an arithmetic number, because the mean of its divisors is an integer number (10651070419354).

Almost surely, 2^{21302140838707} is an apocalyptic number.

21302140838707 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302140838707 is an equidigital number, since it uses as much as digits as its factorization.

21302140838707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 21302140838707 in words is "twenty-one trillion, three hundred two billion, one hundred forty million, eight hundred thirty-eight thousand, seven hundred seven".