121323103444 has 12 divisors (see below), whose sum is σ = 217493856468. Its totient is φ = 59182001600.

The previous prime is 121323103441. The next prime is 121323103457. The reversal of 121323103444 is 444301323121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19708790544 + 101614312900 = 140388^2 + 318770^2 .

It is a super-2 number, since 2×121323103444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323103441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369887347 + ... + 369887674.

It is an arithmetic number, because the mean of its divisors is an integer number (18124488039).

Almost surely, 2^121323103444 is an apocalyptic number.

It is an amenable number.

121323103444 is a deficient number, since it is larger than the sum of its proper divisors (96170753024).

121323103444 is a wasteful number, since it uses less digits than its factorization.

121323103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739775066 (or 739775064 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 121323103444 its reverse (444301323121), we get a palindrome (565624426565).

The spelling of 121323103444 in words is "one hundred twenty-one billion, three hundred twenty-three million, one hundred three thousand, four hundred forty-four".