121833811844 has 24 divisors (see below), whose sum is σ = 216747252288. Its totient is φ = 59906420640.

The previous prime is 121833811843. The next prime is 121833811873. The reversal of 121833811844 is 448118338121.

It is a junction number, because it is equal to n+sod(n) for n = 121833811795 and 121833811804.

It is not an unprimeable number, because it can be changed into a prime (121833811843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257977 + ... + 1351359.

It is an arithmetic number, because the mean of its divisors is an integer number (9031135512).

Almost surely, 2^121833811844 is an apocalyptic number.

It is an amenable number.

121833811844 is a deficient number, since it is larger than the sum of its proper divisors (94913440444).

121833811844 is a wasteful number, since it uses less digits than its factorization.

121833811844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98795 (or 98793 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The spelling of 121833811844 in words is "one hundred twenty-one billion, eight hundred thirty-three million, eight hundred eleven thousand, eight hundred forty-four".