20001034562 has 4 divisors (see below), whose sum is σ = 30001551846. Its totient is φ = 10000517280.

The previous prime is 20001034457. The next prime is 20001034567. The reversal of 20001034562 is 26543010002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26543010002 = 2 ⋅13271505001.

It can be written as a sum of positive squares in only one way, i.e., 14867168761 + 5133865801 = 121931^2 + 71651^2 .

It is not an unprimeable number, because it can be changed into a prime (20001034567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000258639 + ... + 5000258642.

Almost surely, 2^20001034562 is an apocalyptic number.

20001034562 is a deficient number, since it is larger than the sum of its proper divisors (10000517284).

20001034562 is a wasteful number, since it uses less digits than its factorization.

20001034562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000517283.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20001034562 its reverse (26543010002), we get a palindrome (46544044564).

The spelling of 20001034562 in words is "twenty billion, one million, thirty-four thousand, five hundred sixty-two".