280402143313 has 2 divisors, whose sum is σ = 280402143314. Its totient is φ = 280402143312.

The previous prime is 280402143277. The next prime is 280402143337. The reversal of 280402143313 is 313341204082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264146658304 + 16255485009 = 513952^2 + 127497^2 .

It is a cyclic number.

It is not a de Polignac number, because 280402143313 - 2¹³ = 280402135121 is a prime.

It is not a weakly prime, because it can be changed into another prime (280402143613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140201071656 + 140201071657.

It is an arithmetic number, because the mean of its divisors is an integer number (140201071657).

Almost surely, 2^280402143313 is an apocalyptic number.

It is an amenable number.

280402143313 is a deficient number, since it is larger than the sum of its proper divisors (1).

280402143313 is an equidigital number, since it uses as much as digits as its factorization.

280402143313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 280402143313 its reverse (313341204082), we get a palindrome (593743347395).

The spelling of 280402143313 in words is "two hundred eighty billion, four hundred two million, one hundred forty-three thousand, three hundred thirteen".