121112030320 has 40 divisors (see below), whose sum is σ = 286201637280. Its totient is φ = 47650632960.

The previous prime is 121112030287. The next prime is 121112030341. The reversal of 121112030320 is 23030211121.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121112030294 and 121112030303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12404140 + ... + 12413899.

It is an arithmetic number, because the mean of its divisors is an integer number (7155040932).

Almost surely, 2^121112030320 is an apocalyptic number.

121112030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112030320 is an abundant number, since it is smaller than the sum of its proper divisors (165089606960).

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

121112030320 is a wasteful number, since it uses less digits than its factorization.

121112030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24818113 (or 24818107 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121112030320 its reverse (23030211121), we get a palindrome (144142241441).

The spelling of 121112030320 in words is "one hundred twenty-one billion, one hundred twelve million, thirty thousand, three hundred twenty".