231023311121033 has 4 divisors (see below), whose sum is σ = 241067802908928. Its totient is φ = 220978819333140.

The previous prime is 231023311120997. The next prime is 231023311121167. The reversal of 231023311121033 is 330121113320132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231023311121033 - 2¹² = 231023311116937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231023311120993 and 231023311121011.

It is not an unprimeable number, because it can be changed into a prime (231023311141033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022245893913 + ... + 5022245893958.

It is an arithmetic number, because the mean of its divisors is an integer number (60266950727232).

Almost surely, 2^{231023311121033} is an apocalyptic number.

231023311121033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231023311121033 is a deficient number, since it is larger than the sum of its proper divisors (10044491787895).

231023311121033 is a wasteful number, since it uses less digits than its factorization.

231023311121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044491787894.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 231023311121033 its reverse (330121113320132), we get a palindrome (561144424441165).

The spelling of 231023311121033 in words is "two hundred thirty-one trillion, twenty-three billion, three hundred eleven million, one hundred twenty-one thousand, thirty-three".