40100003 has 2 divisors, whose sum is σ = 40100004. Its totient is φ = 40100002.

The previous prime is 40099987. The next prime is 40100041. The reversal of 40100003 is 30000104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40100003 - 2⁴ = 40099987 is a prime.

It is not a weakly prime, because it can be changed into another prime (40100503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050001 + 20050002.

It is an arithmetic number, because the mean of its divisors is an integer number (20050002).

Almost surely, 2^40100003 is an apocalyptic number.

40100003 is a deficient number, since it is larger than the sum of its proper divisors (1).

40100003 is an equidigital number, since it uses as much as digits as its factorization.

40100003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 40100003 is about 6332.4563164699. The cubic root of 40100003 is about 342.2799566948.

Adding to 40100003 its reverse (30000104), we get a palindrome (70100107).

The spelling of 40100003 in words is "forty million, one hundred thousand, three".