20001242334 has 16 divisors (see below), whose sum is σ = 40123342080. Its totient is φ = 6646937880.

The previous prime is 20001242299. The next prime is 20001242363. The reversal of 20001242334 is 43324210002.

It is a self number, because there is not a number n which added to its sum of digits gives 20001242334.

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, 5033574 + ... + 5037545.

It is an arithmetic number, because the mean of its divisors is an integer number (2507708880).

Almost surely, 2^20001242334 is an apocalyptic number.

20001242334 is an abundant number, since it is smaller than the sum of its proper divisors (20122099746).

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

20001242334 is a wasteful number, since it uses less digits than its factorization.

20001242334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071455.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20001242334 its reverse (43324210002), we get a palindrome (63325452336).

The spelling of 20001242334 in words is "twenty billion, one million, two hundred forty-two thousand, three hundred thirty-four".