231320121233033 has 4 divisors (see below), whose sum is σ = 264365852837760. Its totient is φ = 198274389628308.

The previous prime is 231320121233009. The next prime is 231320121233077. The reversal of 231320121233033 is 330332121023132.

231320121233033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 231320121233033 - 2²² = 231320117038729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231320121232987 and 231320121233005.

It is not an unprimeable number, because it can be changed into a prime (231320121233093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16522865802353 + ... + 16522865802366.

It is an arithmetic number, because the mean of its divisors is an integer number (66091463209440).

Almost surely, 2^{231320121233033} is an apocalyptic number.

It is an amenable number.

231320121233033 is a deficient number, since it is larger than the sum of its proper divisors (33045731604727).

231320121233033 is an equidigital number, since it uses as much as digits as its factorization.

231320121233033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33045731604726.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 231320121233033 its reverse (330332121023132), we get a palindrome (561652242256165).

The spelling of 231320121233033 in words is "two hundred thirty-one trillion, three hundred twenty billion, one hundred twenty-one million, two hundred thirty-three thousand, thirty-three".