102100020100002 has 32 divisors (see below), whose sum is σ = 227443674273600. Its totient is φ = 33950128925664.

The previous prime is 102100020099941. The next prime is 102100020100009. The reversal of 102100020100002 is 200001020001201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (102100020100009) 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, 2311397368 + ... + 2311441539.

It is an arithmetic number, because the mean of its divisors is an integer number (7107614821050).

Almost surely, 2^{102100020100002} is an apocalyptic number.

102100020100002 is an abundant number, since it is smaller than the sum of its proper divisors (125343654173598).

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

102100020100002 is a wasteful number, since it uses less digits than its factorization.

102100020100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622839327 (or 4622839321 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102100020100002 its reverse (200001020001201), we get a palindrome (302101040101203).

The spelling of 102100020100002 in words is "one hundred two trillion, one hundred billion, twenty million, one hundred thousand, two".