40100021333 has 4 divisors (see below), whose sum is σ = 40100905260. Its totient is φ = 40099137408.

The previous prime is 40100021329. The next prime is 40100021369. The reversal of 40100021333 is 33312000104.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21927094084 + 18172927249 = 148078^2 + 134807^2 .

It is a cyclic number.

It is not a de Polignac number, because 40100021333 - 2² = 40100021329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40100021033) 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, 370010 + ... + 465947.

It is an arithmetic number, because the mean of its divisors is an integer number (10025226315).

Almost surely, 2^40100021333 is an apocalyptic number.

It is an amenable number.

40100021333 is a deficient number, since it is larger than the sum of its proper divisors (883927).

40100021333 is an equidigital number, since it uses as much as digits as its factorization.

40100021333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883926.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40100021333 its reverse (33312000104), we get a palindrome (73412021437).

The spelling of 40100021333 in words is "forty billion, one hundred million, twenty-one thousand, three hundred thirty-three".