121404311124 has 48 divisors (see below), whose sum is σ = 293158897920. Its totient is φ = 39057450880.

The previous prime is 121404311123. The next prime is 121404311129. The reversal of 121404311124 is 421113404121.

It is a happy number.

121404311124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121404311094 and 121404311103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121404311123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845557 + ... + 978659.

It is an arithmetic number, because the mean of its divisors is an integer number (6107477040).

Almost surely, 2^121404311124 is an apocalyptic number.

It is an amenable number.

121404311124 is an abundant number, since it is smaller than the sum of its proper divisors (171754586796).

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

121404311124 is a wasteful number, since it uses less digits than its factorization.

121404311124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135760 (or 135758 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 121404311124 its reverse (421113404121), we get a palindrome (542517715245).

The spelling of 121404311124 in words is "one hundred twenty-one billion, four hundred four million, three hundred eleven thousand, one hundred twenty-four".