20103101020 has 24 divisors (see below), whose sum is σ = 43672255200. Its totient is φ = 7763956032.

The previous prime is 20103101003. The next prime is 20103101021. The reversal of 20103101020 is 2010130102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20103100988 and 20103101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103101021) 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, 17329680 + ... + 17330839.

It is an arithmetic number, because the mean of its divisors is an integer number (1819677300).

Almost surely, 2^20103101020 is an apocalyptic number.

20103101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103101020 is an abundant number, since it is smaller than the sum of its proper divisors (23569154180).

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

20103101020 is a wasteful number, since it uses less digits than its factorization.

20103101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34660557 (or 34660555 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20103101020 its reverse (2010130102), we get a palindrome (22113231122).

The spelling of 20103101020 in words is "twenty billion, one hundred three million, one hundred one thousand, twenty".