20013110331 has 8 divisors (see below), whose sum is σ = 26685794640. Its totient is φ = 13341249792.

The previous prime is 20013110317. The next prime is 20013110347. The reversal of 20013110331 is 13301131002.

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

It is not a de Polignac number, because 20013110331 - 2¹⁹ = 20012586043 is a prime.

It is a super-2 number, since 2×20013110331² (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 20013110331.

It is not an unprimeable number, because it can be changed into a prime (20013110371) 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, 146830 + ... + 248163.

It is an arithmetic number, because the mean of its divisors is an integer number (3335724330).

Almost surely, 2^20013110331 is an apocalyptic number.

20013110331 is a deficient number, since it is larger than the sum of its proper divisors (6672684309).

20013110331 is a wasteful number, since it uses less digits than its factorization.

20013110331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411885.

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

Adding to 20013110331 its reverse (13301131002), we get a palindrome (33314241333).

The spelling of 20013110331 in words is "twenty billion, thirteen million, one hundred ten thousand, three hundred thirty-one".