102100321000 has 64 divisors (see below), whose sum is σ = 238966986960. Its totient is φ = 40831200000.

The previous prime is 102100320997. The next prime is 102100321031. The reversal of 102100321000 is 123001201.

It can be written as a sum of positive squares in 8 ways, for example, as 16769732004 + 85330588996 = 129498^2 + 292114^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6413050 + ... + 6428950.

Almost surely, 2^102100321000 is an apocalyptic number.

102100321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100321000 is an abundant number, since it is smaller than the sum of its proper divisors (136866665960).

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

102100321000 is a wasteful number, since it uses less digits than its factorization.

102100321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22343 (or 22329 counting only the distinct ones).

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

Adding to 102100321000 its reverse (123001201), we get a palindrome (102223322201).

The spelling of 102100321000 in words is "one hundred two billion, one hundred million, three hundred twenty-one thousand".