40101223 has 4 divisors (see below), whose sum is σ = 40199680. Its totient is φ = 40002768.

The previous prime is 40101169. The next prime is 40101251. The reversal of 40101223 is 32210104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40101223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40101263) 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, 48615 + ... + 49432.

It is an arithmetic number, because the mean of its divisors is an integer number (10049920).

Almost surely, 2^40101223 is an apocalyptic number.

40101223 is a deficient number, since it is larger than the sum of its proper divisors (98457).

40101223 is an equidigital number, since it uses as much as digits as its factorization.

40101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98456.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40101223 is about 6332.5526448660. The cubic root of 40101223 is about 342.2834278276.

Adding to 40101223 its reverse (32210104), we get a palindrome (72311327).

The spelling of 40101223 in words is "forty million, one hundred one thousand, two hundred twenty-three".