20431005033 has 16 divisors (see below), whose sum is σ = 27894844800. Its totient is φ = 13296501504.

The previous prime is 20431005029. The next prime is 20431005053. The reversal of 20431005033 is 33050013402.

It is not a de Polignac number, because 20431005033 - 2² = 20431005029 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20431005053) 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, 291216 + ... + 354497.

It is an arithmetic number, because the mean of its divisors is an integer number (1743427800).

Almost surely, 2^20431005033 is an apocalyptic number.

It is an amenable number.

20431005033 is a deficient number, since it is larger than the sum of its proper divisors (7463839767).

20431005033 is a wasteful number, since it uses less digits than its factorization.

20431005033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645968.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20431005033 its reverse (33050013402), we get a palindrome (53481018435).

The spelling of 20431005033 in words is "twenty billion, four hundred thirty-one million, five thousand, thirty-three".