10312421 has 16 divisors (see below), whose sum is σ = 13138560. Its totient is φ = 7879680.

The previous prime is 10312409. The next prime is 10312453. The reversal of 10312421 is 12421301.

It is not a de Polignac number, because 10312421 - 2¹⁰ = 10311397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10312396 and 10312405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20 + ... + 4541.

It is an arithmetic number, because the mean of its divisors is an integer number (821160).

Almost surely, 2^10312421 is an apocalyptic number.

It is an amenable number.

10312421 is a deficient number, since it is larger than the sum of its proper divisors (2826139).

10312421 is a wasteful number, since it uses less digits than its factorization.

10312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 10312421 is about 3211.2958443594. The cubic root of 10312421 is about 217.6641364634.

Adding to 10312421 its reverse (12421301), we get a palindrome (22733722).

The spelling of 10312421 in words is "ten million, three hundred twelve thousand, four hundred twenty-one".