102123002 has 4 divisors (see below), whose sum is σ = 153184506. Its totient is φ = 51061500.

The previous prime is 102123001. The next prime is 102123011. The reversal of 102123002 is 200321201.

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: 200321201 = 1741 ⋅115061.

It can be written as a sum of positive squares in only one way, i.e., 101022601 + 1100401 = 10051^2 + 1049^2 .

It is not an unprimeable number, because it can be changed into a prime (102123001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530749 + ... + 25530752.

Almost surely, 2^102123002 is an apocalyptic number.

102123002 is a deficient number, since it is larger than the sum of its proper divisors (51061504).

102123002 is an equidigital number, since it uses as much as digits as its factorization.

102123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51061503.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102123002 is about 10105.5926100353. The cubic root of 102123002 is about 467.4206097375.

Adding to 102123002 its reverse (200321201), we get a palindrome (302444203).

The spelling of 102123002 in words is "one hundred two million, one hundred twenty-three thousand, two".