121240130143344 has 80 divisors (see below), whose sum is σ = 321914989827360. Its totient is φ = 39304223354880.

The previous prime is 121240130143271. The next prime is 121240130143361. The reversal of 121240130143344 is 443341031042121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232363837 + ... + 232885020.

It is an arithmetic number, because the mean of its divisors is an integer number (4023937372842).

Almost surely, 2^{121240130143344} is an apocalyptic number.

It is an amenable number.

121240130143344 is an abundant number, since it is smaller than the sum of its proper divisors (200674859684016).

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

121240130143344 is a wasteful number, since it uses less digits than its factorization.

121240130143344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465249018 (or 465249012 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 121240130143344 its reverse (443341031042121), we get a palindrome (564581161185465).

The spelling of 121240130143344 in words is "one hundred twenty-one trillion, two hundred forty billion, one hundred thirty million, one hundred forty-three thousand, three hundred forty-four".