121413331240 has 64 divisors (see below), whose sum is σ = 275515344000. Its totient is φ = 48151504128.

The previous prime is 121413331223. The next prime is 121413331241. The reversal of 121413331240 is 42133314121.

It is a super-3 number, since 3×121413331240³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121413331241) 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, 2912061 + ... + 2953459.

It is an arithmetic number, because the mean of its divisors is an integer number (4304927250).

Almost surely, 2^121413331240 is an apocalyptic number.

121413331240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121413331240 is an abundant number, since it is smaller than the sum of its proper divisors (154102012760).

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

121413331240 is a wasteful number, since it uses less digits than its factorization.

121413331240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42034 (or 42030 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121413331240 its reverse (42133314121), we get a palindrome (163546645361).

The spelling of 121413331240 in words is "one hundred twenty-one billion, four hundred thirteen million, three hundred thirty-one thousand, two hundred forty".