121302000000000 has 1320 divisors, whose sum is σ = 458416007745696. Its totient is φ = 30835200000000.

The previous prime is 121301999999993. The next prime is 121302000000001. The reversal of 121302000000000 is 203121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302000000001) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 413999999854 + ... + 414000000146.

Almost surely, 2^{121302000000000} is an apocalyptic number.

121302000000000 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 121302000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229208003872848).

121302000000000 is an abundant number, since it is smaller than the sum of its proper divisors (337114007745696).

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

121302000000000 is an frugal number, since it uses more digits than its factorization.

121302000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 121302000000000 its reverse (203121), we get a palindrome (121302000203121).

The spelling of 121302000000000 in words is "one hundred twenty-one trillion, three hundred two billion", and thus it is an aban number.