121343433544 has 16 divisors (see below), whose sum is σ = 240902405100. Its totient is φ = 57102792192.

The previous prime is 121343433503. The next prime is 121343433577. The reversal of 121343433544 is 445334343121.

It can be written as a sum of positive squares in 2 ways, for example, as 117834292900 + 3509140644 = 343270^2 + 59238^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446115429 + ... + 446115700.

Almost surely, 2^121343433544 is an apocalyptic number.

It is an amenable number.

121343433544 is a deficient number, since it is larger than the sum of its proper divisors (119558971556).

121343433544 is a wasteful number, since it uses less digits than its factorization.

121343433544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892231152 (or 892231148 counting only the distinct ones).

The product of its digits is 207360, while the sum is 37.

Adding to 121343433544 its reverse (445334343121), we get a palindrome (566677776665).

The spelling of 121343433544 in words is "one hundred twenty-one billion, three hundred forty-three million, four hundred thirty-three thousand, five hundred forty-four".