121331310233 has 8 divisors (see below), whose sum is σ = 141614660352. Its totient is φ = 101785536576.

The previous prime is 121331310179. The next prime is 121331310241. The reversal of 121331310233 is 332013133121.

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

It is a cyclic number.

It is not a de Polignac number, because 121331310233 - 2¹⁸ = 121331048089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121331310199 and 121331310208.

It is not an unprimeable number, because it can be changed into a prime (121331312233) 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 7 ways as a sum of consecutive naturals, for example, 184393760 + ... + 184394417.

It is an arithmetic number, because the mean of its divisors is an integer number (17701832544).

Almost surely, 2^121331310233 is an apocalyptic number.

It is an amenable number.

121331310233 is a deficient number, since it is larger than the sum of its proper divisors (20283350119).

121331310233 is an equidigital number, since it uses as much as digits as its factorization.

121331310233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368788231.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121331310233 its reverse (332013133121), we get a palindrome (453344443354).

The spelling of 121331310233 in words is "one hundred twenty-one billion, three hundred thirty-one million, three hundred ten thousand, two hundred thirty-three".