102123202 has 4 divisors (see below), whose sum is σ = 153184806. Its totient is φ = 51061600.

The previous prime is 102123187. The next prime is 102123223. The reversal of 102123202 is 202321201.

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., 98585041 + 3538161 = 9929^2 + 1881^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530799 + ... + 25530802.

Almost surely, 2^102123202 is an apocalyptic number.

102123202 is a deficient number, since it is larger than the sum of its proper divisors (51061604).

102123202 is an equidigital number, since it uses as much as digits as its factorization.

102123202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51061603.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102123202 is about 10105.6025055412. The cubic root of 102123202 is about 467.4209148730.

Adding to 102123202 its reverse (202321201), we get a palindrome (304444403).

It can be divided in two parts, 10 and 2123202, that added together give a palindrome (2123212).

The spelling of 102123202 in words is "one hundred two million, one hundred twenty-three thousand, two hundred two".