21132864265283 has 2 divisors, whose sum is σ = 21132864265284. Its totient is φ = 21132864265282.

The previous prime is 21132864265243. The next prime is 21132864265291. The reversal of 21132864265283 is 38256246823112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21132864265283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21132864265243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566432132641 + 10566432132642.

It is an arithmetic number, because the mean of its divisors is an integer number (10566432132642).

Almost surely, 2^{21132864265283} is an apocalyptic number.

21132864265283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132864265283 is an equidigital number, since it uses as much as digits as its factorization.

21132864265283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 53.

The spelling of 21132864265283 in words is "twenty-one trillion, one hundred thirty-two billion, eight hundred sixty-four million, two hundred sixty-five thousand, two hundred eighty-three".