2123310133231 has 4 divisors (see below), whose sum is σ = 2426640152272. Its totient is φ = 1819980114192.

The previous prime is 2123310133201. The next prime is 2123310133249. The reversal of 2123310133231 is 1323310133212.

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 2123310133231 - 2¹⁷ = 2123310002159 is a prime.

It is a super-2 number, since 2×2123310133231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123310133196 and 2123310133205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123310133201) 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, 151665009510 + ... + 151665009523.

It is an arithmetic number, because the mean of its divisors is an integer number (606660038068).

Almost surely, 2^{2123310133231} is an apocalyptic number.

2123310133231 is a deficient number, since it is larger than the sum of its proper divisors (303330019041).

2123310133231 is an equidigital number, since it uses as much as digits as its factorization.

2123310133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303330019040.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2123310133231 its reverse (1323310133212), we get a palindrome (3446620266443).

The spelling of 2123310133231 in words is "two trillion, one hundred twenty-three billion, three hundred ten million, one hundred thirty-three thousand, two hundred thirty-one".