2231312121133 has 8 divisors (see below), whose sum is σ = 2233395680256. Its totient is φ = 2229228816000.

The previous prime is 2231312121041. The next prime is 2231312121167. The reversal of 2231312121133 is 3311212131322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231312121133 is a prime.

It is a super-3 number, since 3×2231312121133³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231312121098 and 2231312121107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231312121173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20630685 + ... + 20738557.

It is an arithmetic number, because the mean of its divisors is an integer number (279174460032).

Almost surely, 2^{2231312121133} is an apocalyptic number.

It is an amenable number.

2231312121133 is a deficient number, since it is larger than the sum of its proper divisors (2083559123).

2231312121133 is a wasteful number, since it uses less digits than its factorization.

2231312121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126995.

The product of its digits is 1296, while the sum is 25.

Adding to 2231312121133 its reverse (3311212131322), we get a palindrome (5542524252455).

The spelling of 2231312121133 in words is "two trillion, two hundred thirty-one billion, three hundred twelve million, one hundred twenty-one thousand, one hundred thirty-three".