121343231232 has 54 divisors (see below), whose sum is σ = 349862456762. Its totient is φ = 40447742976.

The previous prime is 121343231221. The next prime is 121343231281. The reversal of 121343231232 is 232132343121.

121343231232 is a `hidden beast` number, since 1 + 2 + 1 + 343 + 2 + 312 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118545244416 + 2797986816 = 344304^2 + 52896^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121343231196 and 121343231205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26330863 + ... + 26335470.

Almost surely, 2^121343231232 is an apocalyptic number.

121343231232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121343231232 is an abundant number, since it is smaller than the sum of its proper divisors (228519225530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121343231232 is an equidigital number, since it uses as much as digits as its factorization.

121343231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52666355 (or 52666338 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 121343231232 its reverse (232132343121), we get a palindrome (353475574353).

The spelling of 121343231232 in words is "one hundred twenty-one billion, three hundred forty-three million, two hundred thirty-one thousand, two hundred thirty-two".