2131223113011 has 8 divisors (see below), whose sum is σ = 2842149479680. Its totient is φ = 1420556077512.

The previous prime is 2131223113009. The next prime is 2131223113021. The reversal of 2131223113011 is 1103113221312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2131223113011 - 2¹ = 2131223113009 is a prime.

It is a super-2 number, since 2×2131223113011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131223113021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64813615 + ... + 64846488.

It is an arithmetic number, because the mean of its divisors is an integer number (355268684960).

Almost surely, 2^{2131223113011} is an apocalyptic number.

2131223113011 is a deficient number, since it is larger than the sum of its proper divisors (710926366669).

2131223113011 is a wasteful number, since it uses less digits than its factorization.

2131223113011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129665585.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2131223113011 its reverse (1103113221312), we get a palindrome (3234336334323).

The spelling of 2131223113011 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred thirteen thousand, eleven".