240004121003 has 4 divisors (see below), whose sum is σ = 240316220760. Its totient is φ = 239692021248.

The previous prime is 240004120969. The next prime is 240004121029. The reversal of 240004121003 is 300121400042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240004121003 - 2¹⁸ = 240003858859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240004120003) 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, 156048725 + ... + 156050262.

It is an arithmetic number, because the mean of its divisors is an integer number (60079055190).

Almost surely, 2^240004121003 is an apocalyptic number.

240004121003 is a deficient number, since it is larger than the sum of its proper divisors (312099757).

240004121003 is an equidigital number, since it uses as much as digits as its factorization.

240004121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312099756.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 240004121003 its reverse (300121400042), we get a palindrome (540125521045).

The spelling of 240004121003 in words is "two hundred forty billion, four million, one hundred twenty-one thousand, three".