121330240144320 has 56 divisors (see below), whose sum is σ = 385223512461264. Its totient is φ = 32354730704896.

The previous prime is 121330240144297. The next prime is 121330240144357. The reversal of 121330240144320 is 23441042033121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63192832449 + ... + 63192834368.

Almost surely, 2^{121330240144320} is an apocalyptic number.

121330240144320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121330240144320 is an abundant number, since it is smaller than the sum of its proper divisors (263893272316944).

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

121330240144320 is a wasteful number, since it uses less digits than its factorization.

121330240144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126385666837 (or 126385666827 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 121330240144320 its reverse (23441042033121), we get a palindrome (144771282177441).

The spelling of 121330240144320 in words is "one hundred twenty-one trillion, three hundred thirty billion, two hundred forty million, one hundred forty-four thousand, three hundred twenty".