121402241324 has 24 divisors (see below), whose sum is σ = 261481751328. Its totient is φ = 48027260160.

The previous prime is 121402241281. The next prime is 121402241327. The reversal of 121402241324 is 423142204121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 121402241293 and 121402241302.

It is not an unprimeable number, because it can be changed into a prime (121402241327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166760957 + ... + 166761684.

It is an arithmetic number, because the mean of its divisors is an integer number (10895072972).

Almost surely, 2^121402241324 is an apocalyptic number.

121402241324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121402241324 is an abundant number, since it is smaller than the sum of its proper divisors (140079510004).

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

121402241324 is a wasteful number, since it uses less digits than its factorization.

121402241324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333522665 (or 333522663 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121402241324 its reverse (423142204121), we get a palindrome (544544445445).

The spelling of 121402241324 in words is "one hundred twenty-one billion, four hundred two million, two hundred forty-one thousand, three hundred twenty-four".