121130331 has 32 divisors (see below), whose sum is σ = 188863488. Its totient is φ = 67630080.

The previous prime is 121130311. The next prime is 121130371. The reversal of 121130331 is 133031121.

It is not a de Polignac number, because 121130331 - 2⁷ = 121130203 is a prime.

It is a super-2 number, since 2×121130331² = 29345114176339122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121130331.

It is not an unprimeable number, because it can be changed into a prime (121130311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203971 + ... + 204563.

It is an arithmetic number, because the mean of its divisors is an integer number (5901984).

Almost surely, 2^121130331 is an apocalyptic number.

121130331 is a deficient number, since it is larger than the sum of its proper divisors (67733157).

121130331 is a wasteful number, since it uses less digits than its factorization.

121130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 121130331 is about 11005.9225419771. The cubic root of 121130331 is about 494.7862642187.

Adding to 121130331 its reverse (133031121), we get a palindrome (254161452).

The spelling of 121130331 in words is "one hundred twenty-one million, one hundred thirty thousand, three hundred thirty-one".