121023112320 has 192 divisors, whose sum is σ = 455899803840. Its totient is φ = 29338920960.

The previous prime is 121023112289. The next prime is 121023112351. The reversal of 121023112320 is 23211320121.

121023112320 is a `hidden beast` number, since 1 + 210 + 23 + 112 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (121023112289) and next prime (121023112351).

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121023112293 and 121023112302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891684 + ... + 1018403.

It is an arithmetic number, because the mean of its divisors is an integer number (2374478145).

Almost surely, 2^121023112320 is an apocalyptic number.

121023112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121023112320 is an abundant number, since it is smaller than the sum of its proper divisors (334876691520).

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

121023112320 is a wasteful number, since it uses less digits than its factorization.

121023112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910123 (or 1910108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121023112320 its reverse (23211320121), we get a palindrome (144234432441).

The spelling of 121023112320 in words is "one hundred twenty-one billion, twenty-three million, one hundred twelve thousand, three hundred twenty".