2113121130031 has 4 divisors (see below), whose sum is σ = 2237422372992. Its totient is φ = 1988819887072.

The previous prime is 2113121130011. The next prime is 2113121130067. The reversal of 2113121130031 is 1300311213112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113121130031 - 2¹¹ = 2113121127983 is a prime.

It is a super-2 number, since 2×2113121130031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113121129990 and 2113121130008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113121130011) 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, 62150621455 + ... + 62150621488.

It is an arithmetic number, because the mean of its divisors is an integer number (559355593248).

Almost surely, 2^{2113121130031} is an apocalyptic number.

2113121130031 is a deficient number, since it is larger than the sum of its proper divisors (124301242961).

2113121130031 is a wasteful number, since it uses less digits than its factorization.

2113121130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124301242960.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2113121130031 its reverse (1300311213112), we get a palindrome (3413432343143).

The spelling of 2113121130031 in words is "two trillion, one hundred thirteen billion, one hundred twenty-one million, one hundred thirty thousand, thirty-one".