20001242402 has 16 divisors (see below), whose sum is σ = 30459812832. Its totient is φ = 9848071200.

The previous prime is 20001242399. The next prime is 20001242413. The reversal of 20001242402 is 20424210002.

It is a happy number.

20001242402 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, 405902 + ... + 452502.

It is an arithmetic number, because the mean of its divisors is an integer number (1903738302).

Almost surely, 2^20001242402 is an apocalyptic number.

20001242402 is a deficient number, since it is larger than the sum of its proper divisors (10458570430).

20001242402 is a wasteful number, since it uses less digits than its factorization.

20001242402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49873.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20001242402 its reverse (20424210002), we get a palindrome (40425452404).

The spelling of 20001242402 in words is "twenty billion, one million, two hundred forty-two thousand, four hundred two".