20130101211 has 16 divisors (see below), whose sum is σ = 29284819200. Its totient is φ = 12198114720.

The previous prime is 20130101207. The next prime is 20130101237. The reversal of 20130101211 is 11210103102.

It is not a de Polignac number, because 20130101211 - 2² = 20130101207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20130102211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176890 + ... + 267488.

It is an arithmetic number, because the mean of its divisors is an integer number (1830301200).

Almost surely, 2^20130101211 is an apocalyptic number.

20130101211 is a deficient number, since it is larger than the sum of its proper divisors (9154717989).

20130101211 is a wasteful number, since it uses less digits than its factorization.

20130101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97346.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20130101211 its reverse (11210103102), we get a palindrome (31340204313).

The spelling of 20130101211 in words is "twenty billion, one hundred thirty million, one hundred one thousand, two hundred eleven".