121325344240 has 40 divisors (see below), whose sum is σ = 291808376640. Its totient is φ = 46856683776.

The previous prime is 121325344213. The next prime is 121325344247. The reversal of 121325344240 is 42443523121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121325344247) 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, 26145384 + ... + 26150023.

It is an arithmetic number, because the mean of its divisors is an integer number (7295209416).

Almost surely, 2^121325344240 is an apocalyptic number.

121325344240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121325344240 is an abundant number, since it is smaller than the sum of its proper divisors (170483032400).

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

121325344240 is a wasteful number, since it uses less digits than its factorization.

121325344240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52295449 (or 52295443 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 121325344240 its reverse (42443523121), we get a palindrome (163768867361).

The spelling of 121325344240 in words is "one hundred twenty-one billion, three hundred twenty-five million, three hundred forty-four thousand, two hundred forty".