20213001123011 has 12 divisors (see below), whose sum is σ = 21549579748200. Its totient is φ = 18906764430528.

The previous prime is 20213001123001. The next prime is 20213001123047. The reversal of 20213001123011 is 11032110031202.

It is not a de Polignac number, because 20213001123011 - 2¹⁰ = 20213001121987 is a prime.

It is a super-2 number, since 2×20213001123011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20213001123001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85111526 + ... + 85348683.

It is an arithmetic number, because the mean of its divisors is an integer number (1795798312350).

Almost surely, 2^{20213001123011} is an apocalyptic number.

20213001123011 is a deficient number, since it is larger than the sum of its proper divisors (1336578625189).

20213001123011 is an equidigital number, since it uses as much as digits as its factorization.

20213001123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170460386 (or 170460307 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20213001123011 its reverse (11032110031202), we get a palindrome (31245111154213).

The spelling of 20213001123011 in words is "twenty trillion, two hundred thirteen billion, one million, one hundred twenty-three thousand, eleven".