123143210002 has 4 divisors (see below), whose sum is σ = 184714815006. Its totient is φ = 61571605000.

The previous prime is 123143209957. The next prime is 123143210033. The reversal of 123143210002 is 200012341321.

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., 73083174921 + 50060035081 = 270339^2 + 223741^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30785802499 + ... + 30785802502.

Almost surely, 2^123143210002 is an apocalyptic number.

123143210002 is a deficient number, since it is larger than the sum of its proper divisors (61571605004).

123143210002 is an equidigital number, since it uses as much as digits as its factorization.

123143210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61571605003.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123143210002 its reverse (200012341321), we get a palindrome (323155551323).

The spelling of 123143210002 in words is "one hundred twenty-three billion, one hundred forty-three million, two hundred ten thousand, two".