20404031133 has 8 divisors (see below), whose sum is σ = 27216100000. Its totient is φ = 13597324848.

The previous prime is 20404031119. The next prime is 20404031233. The reversal of 20404031133 is 33113040402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20404031133 - 2¹² = 20404027037 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 (20404031113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331758 + ... + 1346991.

It is an arithmetic number, because the mean of its divisors is an integer number (3402012500).

Almost surely, 2^20404031133 is an apocalyptic number.

It is an amenable number.

20404031133 is a deficient number, since it is larger than the sum of its proper divisors (6812068867).

20404031133 is a wasteful number, since it uses less digits than its factorization.

20404031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681291.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20404031133 its reverse (33113040402), we get a palindrome (53517071535).

The spelling of 20404031133 in words is "twenty billion, four hundred four million, thirty-one thousand, one hundred thirty-three".