10120403 has 8 divisors (see below), whose sum is σ = 10365408. Its totient is φ = 9877504.

The previous prime is 10120387. The next prime is 10120421. The reversal of 10120403 is 30402101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10120403 - 2⁴ = 10120387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120493) 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 7 ways as a sum of consecutive naturals, for example, 13250 + ... + 13992.

It is an arithmetic number, because the mean of its divisors is an integer number (1295676).

Almost surely, 2^10120403 is an apocalyptic number.

10120403 is a deficient number, since it is larger than the sum of its proper divisors (245005).

10120403 is an equidigital number, since it uses as much as digits as its factorization.

10120403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10120403 is about 3181.2580844691. The cubic root of 10120403 is about 216.3046897440.

Adding to 10120403 its reverse (30402101), we get a palindrome (40522504).

The spelling of 10120403 in words is "ten million, one hundred twenty thousand, four hundred three".