121423541444 has 6 divisors (see below), whose sum is σ = 212491197534. Its totient is φ = 60711770720.

The previous prime is 121423541429. The next prime is 121423541461. The reversal of 121423541444 is 444145324121.

121423541444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 77684838400 + 43738703044 = 278720^2 + 209138^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15177942677 + ... + 15177942684.

It is an arithmetic number, because the mean of its divisors is an integer number (35415199589).

Almost surely, 2^121423541444 is an apocalyptic number.

It is an amenable number.

121423541444 is a deficient number, since it is larger than the sum of its proper divisors (91067656090).

121423541444 is a wasteful number, since it uses less digits than its factorization.

121423541444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30355885365 (or 30355885363 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 121423541444 its reverse (444145324121), we get a palindrome (565568865565).

The spelling of 121423541444 in words is "one hundred twenty-one billion, four hundred twenty-three million, five hundred forty-one thousand, four hundred forty-four".