20130453331 has 8 divisors (see below), whose sum is σ = 20310030720. Its totient is φ = 19951652352.

The previous prime is 20130453313. The next prime is 20130453337. The reversal of 20130453331 is 13335403102.

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

It is a cyclic number.

It is not a de Polignac number, because 20130453331 - 2⁹ = 20130452819 is a prime.

It is a super-2 number, since 2×20130453331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130453296 and 20130453305.

It is not an unprimeable number, because it can be changed into a prime (20130453337) 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, 141955 + ... + 245788.

It is an arithmetic number, because the mean of its divisors is an integer number (2538753840).

Almost surely, 2^20130453331 is an apocalyptic number.

20130453331 is a deficient number, since it is larger than the sum of its proper divisors (179577389).

20130453331 is a wasteful number, since it uses less digits than its factorization.

20130453331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388205.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 20130453331 its reverse (13335403102), we get a palindrome (33465856433).

The spelling of 20130453331 in words is "twenty billion, one hundred thirty million, four hundred fifty-three thousand, three hundred thirty-one".