20103033331 has 4 divisors (see below), whose sum is σ = 20328910200. Its totient is φ = 19877156464.

The previous prime is 20103033317. The next prime is 20103033337. The reversal of 20103033331 is 13333030102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20103033331 - 2¹³ = 20103025139 is a prime.

It is a super-2 number, since 2×20103033331² (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 = 20103033299 and 20103033308.

It is not an unprimeable number, because it can be changed into a prime (20103033337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112938301 + ... + 112938478.

It is an arithmetic number, because the mean of its divisors is an integer number (5082227550).

Almost surely, 2^20103033331 is an apocalyptic number.

20103033331 is a deficient number, since it is larger than the sum of its proper divisors (225876869).

20103033331 is an equidigital number, since it uses as much as digits as its factorization.

20103033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225876868.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20103033331 its reverse (13333030102), we get a palindrome (33436063433).

The spelling of 20103033331 in words is "twenty billion, one hundred three million, thirty-three thousand, three hundred thirty-one".