102103111000020 has 48 divisors (see below), whose sum is σ = 307880150094720. Its totient is φ = 25133073476736.

The previous prime is 102103111000003. The next prime is 102103111000021. The reversal of 102103111000020 is 20000111301201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102103111000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65450711400 + ... + 65450712959.

It is an arithmetic number, because the mean of its divisors is an integer number (6414169793640).

Almost surely, 2^{102103111000020} is an apocalyptic number.

102103111000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102103111000020 is an abundant number, since it is smaller than the sum of its proper divisors (205777039094700).

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

102103111000020 is a wasteful number, since it uses less digits than its factorization.

102103111000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130901424384 (or 130901424382 counting only the distinct ones).

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

Adding to 102103111000020 its reverse (20000111301201), we get a palindrome (122103222301221).

The spelling of 102103111000020 in words is "one hundred two trillion, one hundred three billion, one hundred eleven million, twenty", and thus it is an aban number.