1010255321 has 2 divisors, whose sum is σ = 1010255322. Its totient is φ = 1010255320.

The previous prime is 1010255317. The next prime is 1010255341. The reversal of 1010255321 is 1235520101.

It is a happy number.

It is an a-pointer prime, because the next prime (1010255341) can be obtained adding 1010255321 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997864921 + 12390400 = 31589^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010255321 - 2² = 1010255317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010255293 and 1010255302.

It is not a weakly prime, because it can be changed into another prime (1010255341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505127660 + 505127661.

It is an arithmetic number, because the mean of its divisors is an integer number (505127661).

Almost surely, 2^1010255321 is an apocalyptic number.

It is an amenable number.

1010255321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010255321 is an equidigital number, since it uses as much as digits as its factorization.

1010255321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1010255321 is about 31784.5138550207. The cubic root of 1010255321 is about 1003.4068207255.

Adding to 1010255321 its reverse (1235520101), we get a palindrome (2245775422).

The spelling of 1010255321 in words is "one billion, ten million, two hundred fifty-five thousand, three hundred twenty-one".