40004021203 has 4 divisors (see below), whose sum is σ = 41383470240. Its totient is φ = 38624572168.

The previous prime is 40004021177. The next prime is 40004021227. The reversal of 40004021203 is 30212040004.

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 40004021203 - 2⁵ = 40004021171 is a prime.

It is a super-4 number, since 4×40004021203⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40004021303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689724475 + ... + 689724532.

It is an arithmetic number, because the mean of its divisors is an integer number (10345867560).

Almost surely, 2^40004021203 is an apocalyptic number.

40004021203 is a deficient number, since it is larger than the sum of its proper divisors (1379449037).

40004021203 is a wasteful number, since it uses less digits than its factorization.

40004021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379449036.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 40004021203 its reverse (30212040004), we get a palindrome (70216061207).

The spelling of 40004021203 in words is "forty billion, four million, twenty-one thousand, two hundred three".