121123044400 has 60 divisors (see below), whose sum is σ = 291114376912. Its totient is φ = 48429861120.

The previous prime is 121123044389. The next prime is 121123044407. The reversal of 121123044400 is 4440321121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121123044407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 963589 + ... + 1082011.

Almost surely, 2^121123044400 is an apocalyptic number.

121123044400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121123044400 is an abundant number, since it is smaller than the sum of its proper divisors (169991332512).

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

121123044400 is a wasteful number, since it uses less digits than its factorization.

121123044400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120998 (or 120987 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121123044400 its reverse (4440321121), we get a palindrome (125563365521).

The spelling of 121123044400 in words is "one hundred twenty-one billion, one hundred twenty-three million, forty-four thousand, four hundred".