20103123211020 has 36 divisors (see below), whose sum is σ = 60979473740640. Its totient is φ = 5360832856224.

The previous prime is 20103123211013. The next prime is 20103123211063. The reversal of 20103123211020 is 2011232130102.

20103123211020 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 312 + 321 + 10 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×20103123211020³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20103123210984 and 20103123211002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55842008740 + ... + 55842009099.

Almost surely, 2^{20103123211020} is an apocalyptic number.

20103123211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103123211020 is an abundant number, since it is smaller than the sum of its proper divisors (40876350529620).

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

20103123211020 is a wasteful number, since it uses less digits than its factorization.

20103123211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111684017854 (or 111684017849 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20103123211020 its reverse (2011232130102), we get a palindrome (22114355341122).

The spelling of 20103123211020 in words is "twenty trillion, one hundred three billion, one hundred twenty-three million, two hundred eleven thousand, twenty".