121300023000 has 256 divisors, whose sum is σ = 418588410240. Its totient is φ = 29051136000.

The previous prime is 121300022999. The next prime is 121300023001. The reversal of 121300023000 is 320003121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121300022999) and next prime (121300023001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300023001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1400970 + ... + 1485030.

Almost surely, 2^121300023000 is an apocalyptic number.

121300023000 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 121300023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209294205120).

121300023000 is an abundant number, since it is smaller than the sum of its proper divisors (297288387240).

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

121300023000 is a wasteful number, since it uses less digits than its factorization.

121300023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84135 (or 84121 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 121300023000 its reverse (320003121), we get a palindrome (121620026121).

The spelling of 121300023000 in words is "one hundred twenty-one billion, three hundred million, twenty-three thousand".