121023231420000 has 960 divisors, whose sum is σ = 488832261603840. Its totient is φ = 25521979392000.

The previous prime is 121023231419989. The next prime is 121023231420023. The reversal of 121023231420000 is 24132320121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 14681935879 + ... + 14681944121.

It is an arithmetic number, because the mean of its divisors is an integer number (509200272504).

Almost surely, 2^{121023231420000} is an apocalyptic number.

121023231420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121023231420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244416130801920).

121023231420000 is an abundant number, since it is smaller than the sum of its proper divisors (367809030183840).

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

121023231420000 is a wasteful number, since it uses less digits than its factorization.

121023231420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10985 (or 10962 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121023231420000 its reverse (24132320121), we get a palindrome (121047363740121).

The spelling of 121023231420000 in words is "one hundred twenty-one trillion, twenty-three billion, two hundred thirty-one million, four hundred twenty thousand".