20001023011210 has 16 divisors (see below), whose sum is σ = 36072571962600. Its totient is φ = 7984691306176.

The previous prime is 20001023011153. The next prime is 20001023011219. The reversal of 20001023011210 is 1211032010002.

It can be written as a sum of positive squares in 4 ways, for example, as 19834615310449 + 166407700761 = 4453607^2 + 407931^2 .

It is not an unprimeable number, because it can be changed into a prime (20001023011219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964731945 + ... + 1964742124.

Almost surely, 2^{20001023011210} is an apocalyptic number.

20001023011210 is a deficient number, since it is larger than the sum of its proper divisors (16071548951390).

20001023011210 is a wasteful number, since it uses less digits than its factorization.

20001023011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929474585.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20001023011210 its reverse (1211032010002), we get a palindrome (21212055021212).

The spelling of 20001023011210 in words is "twenty trillion, one billion, twenty-three million, eleven thousand, two hundred ten".