10205143242 has 16 divisors (see below), whose sum is σ = 23326041792. Its totient is φ = 2915755200.

The previous prime is 10205143241. The next prime is 10205143307. The reversal of 10205143242 is 24234150201.

It is not an unprimeable number, because it can be changed into a prime (10205143241) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 121489759 + ... + 121489842.

It is an arithmetic number, because the mean of its divisors is an integer number (1457877612).

Almost surely, 2^10205143242 is an apocalyptic number.

10205143242 is an abundant number, since it is smaller than the sum of its proper divisors (13120898550).

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

10205143242 is a wasteful number, since it uses less digits than its factorization.

10205143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242979613.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 10205143242 its reverse (24234150201), we get a palindrome (34439293443).

The spelling of 10205143242 in words is "ten billion, two hundred five million, one hundred forty-three thousand, two hundred forty-two".