121445030 has 24 divisors (see below), whose sum is σ = 254292048. Its totient is φ = 41638128.

The previous prime is 121445021. The next prime is 121445047. The reversal of 121445030 is 30544121.

It is a junction number, because it is equal to n+sod(n) for n = 121444993 and 121445011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123434 + ... + 124413.

It is an arithmetic number, because the mean of its divisors is an integer number (10595502).

Almost surely, 2^121445030 is an apocalyptic number.

121445030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121445030 is an abundant number, since it is smaller than the sum of its proper divisors (132847018).

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

121445030 is a wasteful number, since it uses less digits than its factorization.

121445030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247868 (or 247861 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121445030 is about 11020.2100705930. The cubic root of 121445030 is about 495.2143818524.

Adding to 121445030 its reverse (30544121), we get a palindrome (151989151).

Subtracting from 121445030 its reverse (30544121), we obtain a palindrome (90900909).

The spelling of 121445030 in words is "one hundred twenty-one million, four hundred forty-five thousand, thirty".