2143040302 has 16 divisors (see below), whose sum is σ = 3472306992. Its totient is φ = 986103360.

The previous prime is 2143040287. The next prime is 2143040311. The reversal of 2143040302 is 2030403412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143040302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115903 + ... + 133114.

It is an arithmetic number, because the mean of its divisors is an integer number (217019187).

Almost surely, 2^2143040302 is an apocalyptic number.

2143040302 is a deficient number, since it is larger than the sum of its proper divisors (1329266690).

2143040302 is a wasteful number, since it uses less digits than its factorization.

2143040302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249363.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2143040302 is about 46292.9832912073. The cubic root of 2143040302 is about 1289.2687203958.

Adding to 2143040302 its reverse (2030403412), we get a palindrome (4173443714).

The spelling of 2143040302 in words is "two billion, one hundred forty-three million, forty thousand, three hundred two".