102020103120 has 80 divisors (see below), whose sum is σ = 340590200832. Its totient is φ = 25112640000.

The previous prime is 102020103113. The next prime is 102020103121. The reversal of 102020103120 is 21301020201.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 102020103096 and 102020103105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020103121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16346256 + ... + 16352495.

Almost surely, 2^102020103120 is an apocalyptic number.

102020103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020103120 is an abundant number, since it is smaller than the sum of its proper divisors (238570097712).

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

102020103120 is a wasteful number, since it uses less digits than its factorization.

102020103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32698780 (or 32698774 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102020103120 its reverse (21301020201), we get a palindrome (123321123321).

The spelling of 102020103120 in words is "one hundred two billion, twenty million, one hundred three thousand, one hundred twenty".