2102323210202 has 4 divisors (see below), whose sum is σ = 3153484815306. Its totient is φ = 1051161605100.

The previous prime is 2102323210201. The next prime is 2102323210231. The reversal of 2102323210202 is 2020123232012.

It is a happy number.

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., 1603563809761 + 498759400441 = 1266319^2 + 706229^2 .

It is not an unprimeable number, because it can be changed into a prime (2102323210201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525580802549 + ... + 525580802552.

Almost surely, 2^{2102323210202} is an apocalyptic number.

2102323210202 is a deficient number, since it is larger than the sum of its proper divisors (1051161605104).

2102323210202 is a wasteful number, since it uses less digits than its factorization.

2102323210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051161605103.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2102323210202 its reverse (2020123232012), we get a palindrome (4122446442214).

The spelling of 2102323210202 in words is "two trillion, one hundred two billion, three hundred twenty-three million, two hundred ten thousand, two hundred two".