121113142320 has 40 divisors (see below), whose sum is σ = 375450741936. Its totient is φ = 32296837888.

The previous prime is 121113142303. The next prime is 121113142357. The reversal of 121113142320 is 23241311121.

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

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, 252318807 + ... + 252319286.

Almost surely, 2^121113142320 is an apocalyptic number.

121113142320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121113142320 is an abundant number, since it is smaller than the sum of its proper divisors (254337599616).

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

121113142320 is a wasteful number, since it uses less digits than its factorization.

121113142320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504638109 (or 504638103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121113142320 its reverse (23241311121), we get a palindrome (144354453441).

The spelling of 121113142320 in words is "one hundred twenty-one billion, one hundred thirteen million, one hundred forty-two thousand, three hundred twenty".