20013101331 has 8 divisors (see below), whose sum is σ = 26854098384. Its totient is φ = 13257085920.

The previous prime is 20013101293. The next prime is 20013101333. The reversal of 20013101331 is 13310131002.

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

It is not a de Polignac number, because 20013101331 - 2²⁶ = 19945992467 is a prime.

It is a super-2 number, since 2×20013101331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20013101331.

It is not an unprimeable number, because it can be changed into a prime (20013101333) 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, 21244860 + ... + 21245801.

It is an arithmetic number, because the mean of its divisors is an integer number (3356762298).

Almost surely, 2^20013101331 is an apocalyptic number.

20013101331 is a deficient number, since it is larger than the sum of its proper divisors (6840997053).

20013101331 is a wasteful number, since it uses less digits than its factorization.

20013101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42490821.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20013101331 its reverse (13310131002), we get a palindrome (33323232333).

The spelling of 20013101331 in words is "twenty billion, thirteen million, one hundred one thousand, three hundred thirty-one".