20013333333 has 8 divisors (see below), whose sum is σ = 30496507968. Its totient is φ = 11436190464.

The previous prime is 20013333311. The next prime is 20013333371. The reversal of 20013333333 is 33333331002.

It is a happy number.

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

It is not a de Polignac number, because 20013333333 - 2⁶ = 20013333269 is a prime.

It is a super-2 number, since 2×20013333333² (a number of 21 digits) contains 22 as substring.

20013333333 is a modest number, since divided by 333333 gives 20013 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013333383) 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, 476507916 + ... + 476507957.

It is an arithmetic number, because the mean of its divisors is an integer number (3812063496).

Almost surely, 2^20013333333 is an apocalyptic number.

It is an amenable number.

20013333333 is a deficient number, since it is larger than the sum of its proper divisors (10483174635).

20013333333 is an equidigital number, since it uses as much as digits as its factorization.

20013333333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953015883.

The product of its (nonzero) digits is 4374, while the sum is 24.

Adding to 20013333333 its reverse (33333331002), we get a palindrome (53346664335).

The spelling of 20013333333 in words is "twenty billion, thirteen million, three hundred thirty-three thousand, three hundred thirty-three".