121332424331 has 4 divisors (see below), whose sum is σ = 126607747152. Its totient is φ = 116057101512.

The previous prime is 121332424309. The next prime is 121332424379. The reversal of 121332424331 is 133424233121.

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 121332424331 - 2¹⁴ = 121332407947 is a prime.

It is a super-2 number, since 2×121332424331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121332424294 and 121332424303.

It is not an unprimeable number, because it can be changed into a prime (121332424391) 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, 2637661376 + ... + 2637661421.

It is an arithmetic number, because the mean of its divisors is an integer number (31651936788).

Almost surely, 2^121332424331 is an apocalyptic number.

121332424331 is a deficient number, since it is larger than the sum of its proper divisors (5275322821).

121332424331 is an equidigital number, since it uses as much as digits as its factorization.

121332424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275322820.

The product of its digits is 10368, while the sum is 29.

Adding to 121332424331 its reverse (133424233121), we get a palindrome (254756657452).

The spelling of 121332424331 in words is "one hundred twenty-one billion, three hundred thirty-two million, four hundred twenty-four thousand, three hundred thirty-one".