121241730 has 32 divisors (see below), whose sum is σ = 295083648. Its totient is φ = 31875200.

The previous prime is 121241707. The next prime is 121241749. The reversal of 121241730 is 37142121.

It is a junction number, because it is equal to n+sod(n) for n = 121241697 and 121241706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26331 + ... + 30590.

It is an arithmetic number, because the mean of its divisors is an integer number (9221364).

Almost surely, 2^121241730 is an apocalyptic number.

121241730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121241730 is an abundant number, since it is smaller than the sum of its proper divisors (173841918).

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

121241730 is a wasteful number, since it uses less digits than its factorization.

121241730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57002.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 121241730 is about 11010.9822450134. The cubic root of 121241730 is about 494.9378965042.

Adding to 121241730 its reverse (37142121), we get a palindrome (158383851).

The spelling of 121241730 in words is "one hundred twenty-one million, two hundred forty-one thousand, seven hundred thirty".