2011101560031 has 4 divisors (see below), whose sum is σ = 2681468746712. Its totient is φ = 1340734373352.

The previous prime is 2011101559993. The next prime is 2011101560059. The reversal of 2011101560031 is 1300651011102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2011101560031 - 2¹⁰ = 2011101559007 is a prime.

It is a super-2 number, since 2×2011101560031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011101560131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335183593336 + ... + 335183593341.

It is an arithmetic number, because the mean of its divisors is an integer number (670367186678).

Almost surely, 2^{2011101560031} is an apocalyptic number.

2011101560031 is a deficient number, since it is larger than the sum of its proper divisors (670367186681).

2011101560031 is an equidigital number, since it uses as much as digits as its factorization.

2011101560031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670367186680.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 2011101560031 its reverse (1300651011102), we get a palindrome (3311752571133).

The spelling of 2011101560031 in words is "two trillion, eleven billion, one hundred one million, five hundred sixty thousand, thirty-one".