102103120202 has 4 divisors (see below), whose sum is σ = 153154680306. Its totient is φ = 51051560100.

The previous prime is 102103120201. The next prime is 102103120237. The reversal of 102103120202 is 202021301201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202021301201 = 17 ⋅11883605953.

It can be written as a sum of positive squares in only one way, i.e., 55904346481 + 46198773721 = 236441^2 + 214939^2 .

It is not an unprimeable number, because it can be changed into a prime (102103120201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525780049 + ... + 25525780052.

Almost surely, 2^102103120202 is an apocalyptic number.

102103120202 is a deficient number, since it is larger than the sum of its proper divisors (51051560104).

102103120202 is an equidigital number, since it uses as much as digits as its factorization.

102103120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051560103.

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

Adding to 102103120202 its reverse (202021301201), we get a palindrome (304124421403).

The spelling of 102103120202 in words is "one hundred two billion, one hundred three million, one hundred twenty thousand, two hundred two".