121130355 has 32 divisors (see below), whose sum is σ = 210000384. Its totient is φ = 59383296.

The previous prime is 121130311. The next prime is 121130371. The reversal of 121130355 is 553031121.

It is not a de Polignac number, because 121130355 - 2⁹ = 121129843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5442 + ... + 16488.

It is an arithmetic number, because the mean of its divisors is an integer number (6562512).

Almost surely, 2^121130355 is an apocalyptic number.

121130355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121130355 is a deficient number, since it is larger than the sum of its proper divisors (88870029).

121130355 is a wasteful number, since it uses less digits than its factorization.

121130355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 121130355 is about 11005.9236322991. The cubic root of 121130355 is about 494.7862968966.

Adding to 121130355 its reverse (553031121), we get a palindrome (674161476).

The spelling of 121130355 in words is "one hundred twenty-one million, one hundred thirty thousand, three hundred fifty-five".