40100203 has 16 divisors (see below), whose sum is σ = 49593600. Its totient is φ = 31877280.

The previous prime is 40100191. The next prime is 40100213. The reversal of 40100203 is 30200104.

It is a cyclic number.

It is not a de Polignac number, because 40100203 - 2⁹ = 40099691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40100203.

It is not an unprimeable number, because it can be changed into a prime (40100213) 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, 4663 + ... + 10096.

It is an arithmetic number, because the mean of its divisors is an integer number (3099600).

Almost surely, 2^40100203 is an apocalyptic number.

40100203 is a deficient number, since it is larger than the sum of its proper divisors (9493397).

40100203 is a wasteful number, since it uses less digits than its factorization.

40100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14802.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 40100203 is about 6332.4721081107. The cubic root of 40100203 is about 342.2805257378.

Adding to 40100203 its reverse (30200104), we get a palindrome (70300307).

Subtracting from 40100203 its reverse (30200104), we obtain a palindrome (9900099).

The spelling of 40100203 in words is "forty million, one hundred thousand, two hundred three".