102100021032 has 16 divisors (see below), whose sum is σ = 255250052640. Its totient is φ = 34033340336.

The previous prime is 102100021021. The next prime is 102100021033. The reversal of 102100021032 is 230120001201.

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 = 102100020999 and 102100021017.

It is not an unprimeable number, because it can be changed into a prime (102100021033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2127083748 + ... + 2127083795.

It is an arithmetic number, because the mean of its divisors is an integer number (15953128290).

Almost surely, 2^102100021032 is an apocalyptic number.

102100021032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102100021032 is an abundant number, since it is smaller than the sum of its proper divisors (153150031608).

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

102100021032 is a wasteful number, since it uses less digits than its factorization.

102100021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254167552 (or 4254167548 counting only the distinct ones).

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

Adding to 102100021032 its reverse (230120001201), we get a palindrome (332220022233).

The spelling of 102100021032 in words is "one hundred two billion, one hundred million, twenty-one thousand, thirty-two".