121129030 has 32 divisors (see below), whose sum is σ = 240185088. Its totient is φ = 43615200.

The previous prime is 121129013. The next prime is 121129037. The reversal of 121129030 is 30921121.

It is a junction number, because it is equal to n+sod(n) for n = 121128989 and 121129007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121129037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985 + ... + 16675.

It is an arithmetic number, because the mean of its divisors is an integer number (7505784).

Almost surely, 2^121129030 is an apocalyptic number.

121129030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121129030 is a deficient number, since it is larger than the sum of its proper divisors (119056058).

121129030 is a wasteful number, since it uses less digits than its factorization.

121129030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10812.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 121129030 is about 11005.8634372774. The cubic root of 121129030 is about 494.7844927955.

The spelling of 121129030 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, thirty".