121051523004 has 12 divisors (see below), whose sum is σ = 282453553704. Its totient is φ = 40350507664.

The previous prime is 121051523003. The next prime is 121051523027. The reversal of 121051523004 is 400325150121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121051523003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5043813447 + ... + 5043813470.

It is an arithmetic number, because the mean of its divisors is an integer number (23537796142).

Almost surely, 2^121051523004 is an apocalyptic number.

It is an amenable number.

121051523004 is an abundant number, since it is smaller than the sum of its proper divisors (161402030700).

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

121051523004 is a wasteful number, since it uses less digits than its factorization.

121051523004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087626924 (or 10087626922 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 121051523004 its reverse (400325150121), we get a palindrome (521376673125).

The spelling of 121051523004 in words is "one hundred twenty-one billion, fifty-one million, five hundred twenty-three thousand, four".