10421273 has 4 divisors (see below), whose sum is σ = 10431780. Its totient is φ = 10410768.

The previous prime is 10421251. The next prime is 10421287. The reversal of 10421273 is 37212401.

10421273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37212401 = 97 ⋅383633.

It can be written as a sum of positive squares in 2 ways, for example, as 104329 + 10316944 = 323^2 + 3212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10421273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3590 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (2607945).

Almost surely, 2^10421273 is an apocalyptic number.

It is an amenable number.

10421273 is a deficient number, since it is larger than the sum of its proper divisors (10507).

10421273 is an equidigital number, since it uses as much as digits as its factorization.

10421273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10506.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 10421273 is about 3228.1996530574. The cubic root of 10421273 is about 218.4273034626.

Adding to 10421273 its reverse (37212401), we get a palindrome (47633674).

The spelling of 10421273 in words is "ten million, four hundred twenty-one thousand, two hundred seventy-three".