102143140234 has 4 divisors (see below), whose sum is σ = 153214710354. Its totient is φ = 51071570116.

The previous prime is 102143140213. The next prime is 102143140243. The reversal of 102143140234 is 432041341201.

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., 69292665225 + 32850475009 = 263235^2 + 181247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102143140199 and 102143140208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25535785057 + ... + 25535785060.

Almost surely, 2^102143140234 is an apocalyptic number.

102143140234 is a deficient number, since it is larger than the sum of its proper divisors (51071570120).

102143140234 is an equidigital number, since it uses as much as digits as its factorization.

102143140234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51071570119.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 102143140234 its reverse (432041341201), we get a palindrome (534184481435).

The spelling of 102143140234 in words is "one hundred two billion, one hundred forty-three million, one hundred forty thousand, two hundred thirty-four".