10021263 has 16 divisors (see below), whose sum is σ = 15522816. Its totient is φ = 5631840.

The previous prime is 10021259. The next prime is 10021267. The reversal of 10021263 is 36212001.

It is an interprime number because it is at equal distance from previous prime (10021259) and next prime (10021267).

It is not a de Polignac number, because 10021263 - 2² = 10021259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021267) 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 in 15 ways as a sum of consecutive naturals, for example, 2631 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (970176).

Almost surely, 2^10021263 is an apocalyptic number.

10021263 is a deficient number, since it is larger than the sum of its proper divisors (5501553).

10021263 is an equidigital number, since it uses as much as digits as its factorization.

10021263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10021263 is about 3165.6378504181. The cubic root of 10021263 is about 215.5960600522.

Adding to 10021263 its reverse (36212001), we get a palindrome (46233264).

The spelling of 10021263 in words is "ten million, twenty-one thousand, two hundred sixty-three".