121332332243 has 4 divisors (see below), whose sum is σ = 121486503720. Its totient is φ = 121178160768.

The previous prime is 121332332197. The next prime is 121332332273. The reversal of 121332332243 is 342233233121.

It is a happy number.

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 121332332243 - 2⁸ = 121332331987 is a prime.

It is a super-2 number, since 2×121332332243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121332332273) 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, 77084558 + ... + 77086131.

It is an arithmetic number, because the mean of its divisors is an integer number (30371625930).

Almost surely, 2^121332332243 is an apocalyptic number.

121332332243 is a deficient number, since it is larger than the sum of its proper divisors (154171477).

121332332243 is an equidigital number, since it uses as much as digits as its factorization.

121332332243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154171476.

The product of its digits is 15552, while the sum is 29.

Adding to 121332332243 its reverse (342233233121), we get a palindrome (463565565364).

The spelling of 121332332243 in words is "one hundred twenty-one billion, three hundred thirty-two million, three hundred thirty-two thousand, two hundred forty-three".