20130220033 has 12 divisors (see below), whose sum is σ = 25545586032. Its totient is φ = 15685885320.

The previous prime is 20130220031. The next prime is 20130220049. The reversal of 20130220033 is 33002203102.

It is not a de Polignac number, because 20130220033 - 2¹ = 20130220031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130219989 and 20130220016.

It is not an unprimeable number, because it can be changed into a prime (20130220031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18673135 + ... + 18674212.

It is an arithmetic number, because the mean of its divisors is an integer number (2128798836).

Almost surely, 2^20130220033 is an apocalyptic number.

It is an amenable number.

20130220033 is a deficient number, since it is larger than the sum of its proper divisors (5415365999).

20130220033 is a wasteful number, since it uses less digits than its factorization.

20130220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37347372 (or 37347365 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20130220033 its reverse (33002203102), we get a palindrome (53132423135).

The spelling of 20130220033 in words is "twenty billion, one hundred thirty million, two hundred twenty thousand, thirty-three".