102123100202 has 16 divisors (see below), whose sum is σ = 158538614472. Its totient is φ = 49302574080.

The previous prime is 102123100199. The next prime is 102123100207. The reversal of 102123100202 is 202001321201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49603752961 + 52519347241 = 222719^2 + 229171^2 .

It is not an unprimeable number, because it can be changed into a prime (102123100207) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6411653 + ... + 6427560.

Almost surely, 2^102123100202 is an apocalyptic number.

102123100202 is a deficient number, since it is larger than the sum of its proper divisors (56415514270).

102123100202 is a wasteful number, since it uses less digits than its factorization.

102123100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839353.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102123100202 its reverse (202001321201), we get a palindrome (304124421403).

The spelling of 102123100202 in words is "one hundred two billion, one hundred twenty-three million, one hundred thousand, two hundred two".