20130211001131 has 16 divisors (see below), whose sum is σ = 25319506871808. Its totient is φ = 15547065609600.

The previous prime is 20130211001111. The next prime is 20130211001161. The reversal of 20130211001131 is 13110011203102.

It is a happy number.

It is not a de Polignac number, because 20130211001131 - 2²¹ = 20130208903979 is a prime.

It is a super-2 number, since 2×20130211001131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130211001111) 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, 1156767015 + ... + 1156784416.

It is an arithmetic number, because the mean of its divisors is an integer number (1582469179488).

Almost surely, 2^{20130211001131} is an apocalyptic number.

20130211001131 is a deficient number, since it is larger than the sum of its proper divisors (5189295870677).

20130211001131 is a wasteful number, since it uses less digits than its factorization.

20130211001131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313551562.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20130211001131 its reverse (13110011203102), we get a palindrome (33240222204233).

The spelling of 20130211001131 in words is "twenty trillion, one hundred thirty billion, two hundred eleven million, one thousand, one hundred thirty-one".