121243344124 has 48 divisors (see below), whose sum is σ = 244732453056. Its totient is φ = 51480576000.

The previous prime is 121243344119. The next prime is 121243344133. The reversal of 121243344124 is 421443342121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9615424 + ... + 9628024.

It is an arithmetic number, because the mean of its divisors is an integer number (5098592772).

Almost surely, 2^121243344124 is an apocalyptic number.

121243344124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121243344124 is an abundant number, since it is smaller than the sum of its proper divisors (123489108932).

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

121243344124 is a wasteful number, since it uses less digits than its factorization.

121243344124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766 (or 15764 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 121243344124 its reverse (421443342121), we get a palindrome (542686686245).

The spelling of 121243344124 in words is "one hundred twenty-one billion, two hundred forty-three million, three hundred forty-four thousand, one hundred twenty-four".