10403121 has 16 divisors (see below), whose sum is σ = 14342400. Its totient is φ = 6703488.

The previous prime is 10403111. The next prime is 10403131. The reversal of 10403121 is 12130401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10403111) and next prime (10403131).

It is not a de Polignac number, because 10403121 - 2¹³ = 10394929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10403097 and 10403106.

It is not an unprimeable number, because it can be changed into a prime (10403111) 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, 12135 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (896400).

Almost surely, 2^10403121 is an apocalyptic number.

It is an amenable number.

10403121 is a deficient number, since it is larger than the sum of its proper divisors (3939279).

10403121 is an equidigital number, since it uses as much as digits as its factorization.

10403121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10403121 is about 3225.3869535298. The cubic root of 10403121 is about 218.3004092822.

Adding to 10403121 its reverse (12130401), we get a palindrome (22533522).

The spelling of 10403121 in words is "ten million, four hundred three thousand, one hundred twenty-one".