121303311030 has 96 divisors (see below), whose sum is σ = 344433267360. Its totient is φ = 29374986240.

The previous prime is 121303310959. The next prime is 121303311083. The reversal of 121303311030 is 30113303121.

It is a happy number.

121303311030 is a `hidden beast` number, since 1 + 21 + 303 + 311 + 0 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121303310994 and 121303311012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 853764 + ... + 985656.

It is an arithmetic number, because the mean of its divisors is an integer number (3587846535).

Almost surely, 2^121303311030 is an apocalyptic number.

121303311030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121303311030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172216633680).

121303311030 is an abundant number, since it is smaller than the sum of its proper divisors (223129956330).

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

121303311030 is a wasteful number, since it uses less digits than its factorization.

121303311030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132846 (or 132843 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121303311030 its reverse (30113303121), we get a palindrome (151416614151).

The spelling of 121303311030 in words is "one hundred twenty-one billion, three hundred three million, three hundred eleven thousand, thirty".