121041312030 has 96 divisors (see below), whose sum is σ = 331535168640. Its totient is φ = 30554470080.

The previous prime is 121041311987. The next prime is 121041312031. The reversal of 121041312030 is 30213140121.

121041312030 is a `hidden beast` number, since 1 + 210 + 413 + 12 + 0 + 30 = 666.

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 = 121041311994 and 121041312012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121041312031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2166345 + ... + 2221515.

It is an arithmetic number, because the mean of its divisors is an integer number (3453491340).

Almost surely, 2^121041312030 is an apocalyptic number.

121041312030 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 121041312030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165767584320).

121041312030 is an abundant number, since it is smaller than the sum of its proper divisors (210493856610).

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

121041312030 is a wasteful number, since it uses less digits than its factorization.

121041312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56486 (or 56483 counting only the distinct ones).

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

Adding to 121041312030 its reverse (30213140121), we get a palindrome (151254452151).

The spelling of 121041312030 in words is "one hundred twenty-one billion, forty-one million, three hundred twelve thousand, thirty".