20404130033 has 48 divisors (see below), whose sum is σ = 24968079360. Its totient is φ = 16605388800.

The previous prime is 20404130029. The next prime is 20404130041. The reversal of 20404130033 is 33003140402.

It is not a de Polignac number, because 20404130033 - 2² = 20404130029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20404129987 and 20404130014.

It is not an unprimeable number, because it can be changed into a prime (20404130933) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23159753 + ... + 23160633.

It is an arithmetic number, because the mean of its divisors is an integer number (520168320).

Almost surely, 2^20404130033 is an apocalyptic number.

It is an amenable number.

20404130033 is a deficient number, since it is larger than the sum of its proper divisors (4563949327).

20404130033 is a wasteful number, since it uses less digits than its factorization.

20404130033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20404130033 its reverse (33003140402), we get a palindrome (53407270435).

The spelling of 20404130033 in words is "twenty billion, four hundred four million, one hundred thirty thousand, thirty-three".