20103331020 has 24 divisors (see below), whose sum is σ = 56289327024. Its totient is φ = 5360888256.

The previous prime is 20103330991. The next prime is 20103331021. The reversal of 20103331020 is 2013330102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20103331021) 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, 167527699 + ... + 167527818.

It is an arithmetic number, because the mean of its divisors is an integer number (2345388626).

Almost surely, 2^20103331020 is an apocalyptic number.

20103331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103331020 is an abundant number, since it is smaller than the sum of its proper divisors (36185996004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20103331020 is a wasteful number, since it uses less digits than its factorization.

20103331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335055529 (or 335055527 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20103331020 its reverse (2013330102), we get a palindrome (22116661122).

The spelling of 20103331020 in words is "twenty billion, one hundred three million, three hundred thirty-one thousand, twenty".