284321281133 has 2 divisors, whose sum is σ = 284321281134. Its totient is φ = 284321281132.

The previous prime is 284321281109. The next prime is 284321281141. The reversal of 284321281133 is 331182123482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245621342404 + 38699938729 = 495602^2 + 196723^2 .

It is a cyclic number.

It is not a de Polignac number, because 284321281133 - 2⁸ = 284321280877 is a prime.

It is a super-2 number, since 2×284321281133² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284321281333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142160640566 + 142160640567.

It is an arithmetic number, because the mean of its divisors is an integer number (142160640567).

Almost surely, 2^284321281133 is an apocalyptic number.

It is an amenable number.

284321281133 is a deficient number, since it is larger than the sum of its proper divisors (1).

284321281133 is an equidigital number, since it uses as much as digits as its factorization.

284321281133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The spelling of 284321281133 in words is "two hundred eighty-four billion, three hundred twenty-one million, two hundred eighty-one thousand, one hundred thirty-three".