40330121003 has 16 divisors (see below), whose sum is σ = 43773942240. Its totient is φ = 37017040896.

The previous prime is 40330120951. The next prime is 40330121017. The reversal of 40330121003 is 30012103304.

It is a happy number.

It is not a de Polignac number, because 40330121003 - 2¹⁰ = 40330119979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40330121063) 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, 72125 + ... + 293022.

It is an arithmetic number, because the mean of its divisors is an integer number (2735871390).

Almost surely, 2^40330121003 is an apocalyptic number.

40330121003 is a deficient number, since it is larger than the sum of its proper divisors (3443821237).

40330121003 is a wasteful number, since it uses less digits than its factorization.

40330121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365326.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40330121003 its reverse (30012103304), we get a palindrome (70342224307).

The spelling of 40330121003 in words is "forty billion, three hundred thirty million, one hundred twenty-one thousand, three".