231121013033 has 2 divisors, whose sum is σ = 231121013034. Its totient is φ = 231121013032.

The previous prime is 231121013027. The next prime is 231121013047. The reversal of 231121013033 is 330310121132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158968069264 + 72152943769 = 398708^2 + 268613^2 .

It is a cyclic number.

It is not a de Polignac number, because 231121013033 - 2⁸ = 231121012777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231121012996 and 231121013014.

It is not a weakly prime, because it can be changed into another prime (231121013003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115560506516 + 115560506517.

It is an arithmetic number, because the mean of its divisors is an integer number (115560506517).

Almost surely, 2^231121013033 is an apocalyptic number.

It is an amenable number.

231121013033 is a deficient number, since it is larger than the sum of its proper divisors (1).

231121013033 is an equidigital number, since it uses as much as digits as its factorization.

231121013033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231121013033 its reverse (330310121132), we get a palindrome (561431134165).

The spelling of 231121013033 in words is "two hundred thirty-one billion, one hundred twenty-one million, thirteen thousand, thirty-three".