121130445 has 16 divisors (see below), whose sum is σ = 196987392. Its totient is φ = 63543360.

The previous prime is 121130417. The next prime is 121130447. The reversal of 121130445 is 544031121.

It is not a de Polignac number, because 121130445 - 2⁶ = 121130381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65277 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (12311712).

Almost surely, 2^121130445 is an apocalyptic number.

121130445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121130445 is a deficient number, since it is larger than the sum of its proper divisors (75856947).

121130445 is a wasteful number, since it uses less digits than its factorization.

121130445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132452.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121130445 is about 11005.9277210056. The cubic root of 121130445 is about 494.7864194388.

Adding to 121130445 its reverse (544031121), we get a palindrome (665161566).

The spelling of 121130445 in words is "one hundred twenty-one million, one hundred thirty thousand, four hundred forty-five".