20041440133 has 16 divisors (see below), whose sum is σ = 24119468352. Its totient is φ = 16407792000.

The previous prime is 20041440121. The next prime is 20041440137. The reversal of 20041440133 is 33104414002.

It is a cyclic number.

It is not a de Polignac number, because 20041440133 - 2¹³ = 20041431941 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 (20041440137) 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, 1703283 + ... + 1715008.

It is an arithmetic number, because the mean of its divisors is an integer number (1507466772).

Almost surely, 2^20041440133 is an apocalyptic number.

It is an amenable number.

20041440133 is a deficient number, since it is larger than the sum of its proper divisors (4078028219).

20041440133 is a wasteful number, since it uses less digits than its factorization.

20041440133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418356.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20041440133 its reverse (33104414002), we get a palindrome (53145854135).

The spelling of 20041440133 in words is "twenty billion, forty-one million, four hundred forty thousand, one hundred thirty-three".