102111101002 has 4 divisors (see below), whose sum is σ = 153166651506. Its totient is φ = 51055550500.

The previous prime is 102111100997. The next prime is 102111101023. The reversal of 102111101002 is 200101111201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96341331321 + 5769769681 = 310389^2 + 75959^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102111101002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527775249 + ... + 25527775252.

Almost surely, 2^102111101002 is an apocalyptic number.

102111101002 is a deficient number, since it is larger than the sum of its proper divisors (51055550504).

102111101002 is an equidigital number, since it uses as much as digits as its factorization.

102111101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055550503.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102111101002 its reverse (200101111201), we get a palindrome (302212212203).

The spelling of 102111101002 in words is "one hundred two billion, one hundred eleven million, one hundred one thousand, two".