20011210213131 has 48 divisors (see below), whose sum is σ = 29920401358848. Its totient is φ = 12874633387200.

The previous prime is 20011210213019. The next prime is 20011210213201. The reversal of 20011210213131 is 13131201211002.

20011210213131 is a `hidden beast` number, since 200 + 1 + 121 + 0 + 213 + 131 = 666.

It is not a de Polignac number, because 20011210213131 - 2⁴² = 15613163702027 is a prime.

It is a super-3 number, since 3×20011210213131³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20011210213331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164009710 + ... + 164131676.

It is an arithmetic number, because the mean of its divisors is an integer number (623341694976).

Almost surely, 2^{20011210213131} is an apocalyptic number.

20011210213131 is a deficient number, since it is larger than the sum of its proper divisors (9909191145717).

20011210213131 is a wasteful number, since it uses less digits than its factorization.

20011210213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123632 (or 123629 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20011210213131 its reverse (13131201211002), we get a palindrome (33142411424133).

The spelling of 20011210213131 in words is "twenty trillion, eleven billion, two hundred ten million, two hundred thirteen thousand, one hundred thirty-one".