10421403 has 4 divisors (see below), whose sum is σ = 13895208. Its totient is φ = 6947600.

The previous prime is 10421401. The next prime is 10421413. The reversal of 10421403 is 30412401.

10421403 is digitally balanced in base 2 and base 4, because in such bases 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 an emirpimes, since its reverse is a distinct semiprime: 30412401 = 3 ⋅10137467.

It is a cyclic number.

It is not a de Polignac number, because 10421403 - 2¹ = 10421401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10421401) 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, 1736898 + ... + 1736903.

It is an arithmetic number, because the mean of its divisors is an integer number (3473802).

Almost surely, 2^10421403 is an apocalyptic number.

10421403 is a deficient number, since it is larger than the sum of its proper divisors (3473805).

10421403 is an equidigital number, since it uses as much as digits as its factorization.

10421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473804.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 10421403 is about 3228.2197880566. The cubic root of 10421403 is about 218.4282117147.

Adding to 10421403 its reverse (30412401), we get a palindrome (40833804).

The spelling of 10421403 in words is "ten million, four hundred twenty-one thousand, four hundred three".