20002143242 has 16 divisors (see below), whose sum is σ = 30817917312. Its totient is φ = 9729570960.

The previous prime is 20002143193. The next prime is 20002143253. The reversal of 20002143242 is 24234120002.

20002143242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 1013723 + ... + 1033265.

It is an arithmetic number, because the mean of its divisors is an integer number (1926119832).

Almost surely, 2^20002143242 is an apocalyptic number.

20002143242 is a deficient number, since it is larger than the sum of its proper divisors (10815774070).

20002143242 is a wasteful number, since it uses less digits than its factorization.

20002143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33413.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20002143242 its reverse (24234120002), we get a palindrome (44236263244).

The spelling of 20002143242 in words is "twenty billion, two million, one hundred forty-three thousand, two hundred forty-two".