1243143102 has 16 divisors (see below), whose sum is σ = 2505267072. Its totient is φ = 411217560.

The previous prime is 1243143089. The next prime is 1243143107. The reversal of 1243143102 is 2013413421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243143107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790018 + ... + 791589.

It is an arithmetic number, because the mean of its divisors is an integer number (156579192).

Almost surely, 2^1243143102 is an apocalyptic number.

1243143102 is an abundant number, since it is smaller than the sum of its proper divisors (1262123970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243143102 is a wasteful number, since it uses less digits than its factorization.

1243143102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581743.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1243143102 is about 35258.2345275540. The cubic root of 1243143102 is about 1075.2440338716.

Adding to 1243143102 its reverse (2013413421), we get a palindrome (3256556523).

The spelling of 1243143102 in words is "one billion, two hundred forty-three million, one hundred forty-three thousand, one hundred two".