2011130110021 has 4 divisors (see below), whose sum is σ = 2116979063200. Its totient is φ = 1905281156844.

The previous prime is 2011130110019. The next prime is 2011130110037. The reversal of 2011130110021 is 1200110311102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011130110021 - 2¹ = 2011130110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011130109983 and 2011130110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011130110421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52924476561 + ... + 52924476598.

It is an arithmetic number, because the mean of its divisors is an integer number (529244765800).

Almost surely, 2^{2011130110021} is an apocalyptic number.

It is an amenable number.

2011130110021 is a deficient number, since it is larger than the sum of its proper divisors (105848953179).

2011130110021 is a wasteful number, since it uses less digits than its factorization.

2011130110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105848953178.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 2011130110021 its reverse (1200110311102), we get a palindrome (3211240421123).

The spelling of 2011130110021 in words is "two trillion, eleven billion, one hundred thirty million, one hundred ten thousand, twenty-one".