20013233033 has 4 divisors (see below), whose sum is σ = 20056646148. Its totient is φ = 19969819920.

The previous prime is 20013233003. The next prime is 20013233069. The reversal of 20013233033 is 33033231002.

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 3546440704 + 16466792329 = 59552^2 + 128323^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013233033 - 2⁸ = 20013232777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013232996 and 20013233014.

It is not an unprimeable number, because it can be changed into a prime (20013233003) 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, 21705866 + ... + 21706787.

It is an arithmetic number, because the mean of its divisors is an integer number (5014161537).

Almost surely, 2^20013233033 is an apocalyptic number.

It is an amenable number.

20013233033 is a deficient number, since it is larger than the sum of its proper divisors (43413115).

20013233033 is an equidigital number, since it uses as much as digits as its factorization.

20013233033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43413114.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20013233033 its reverse (33033231002), we get a palindrome (53046464035).

The spelling of 20013233033 in words is "twenty billion, thirteen million, two hundred thirty-three thousand, thirty-three".