121340535320 has 64 divisors (see below), whose sum is σ = 274025894400. Its totient is φ = 48356922240.

The previous prime is 121340535317. The next prime is 121340535331. The reversal of 121340535320 is 23535043121.

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, 32555297 + ... + 32559023.

It is an arithmetic number, because the mean of its divisors is an integer number (4281654600).

Almost surely, 2^121340535320 is an apocalyptic number.

121340535320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121340535320 is an abundant number, since it is smaller than the sum of its proper divisors (152685359080).

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

121340535320 is a wasteful number, since it uses less digits than its factorization.

121340535320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528 (or 6524 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 121340535320 its reverse (23535043121), we get a palindrome (144875578441).

The spelling of 121340535320 in words is "one hundred twenty-one billion, three hundred forty million, five hundred thirty-five thousand, three hundred twenty".