102030021303120 has 60 divisors (see below), whose sum is σ = 342650821545396. Its totient is φ = 27208005680640.

The previous prime is 102030021303097. The next prime is 102030021303121. The reversal of 102030021303120 is 21303120030201.

102030021303120 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 300 + 21 + 30 + 312 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52006539941136 + 50023481361984 = 7211556^2 + 7072728^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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 = 102030021303093 and 102030021303102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030021303121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70854180741 + ... + 70854182180.

Almost surely, 2^{102030021303120} is an apocalyptic number.

102030021303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102030021303120 is an abundant number, since it is smaller than the sum of its proper divisors (240620800242276).

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

102030021303120 is a wasteful number, since it uses less digits than its factorization.

102030021303120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141708362940 (or 141708362931 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102030021303120 its reverse (21303120030201), we get a palindrome (123333141333321).

The spelling of 102030021303120 in words is "one hundred two trillion, thirty billion, twenty-one million, three hundred three thousand, one hundred twenty".