121129004 has 6 divisors (see below), whose sum is σ = 211975764. Its totient is φ = 60564500.

The previous prime is 121128991. The next prime is 121129007. The reversal of 121129004 is 400921121.

It is a super-2 number, since 2×121129004² = 29344471220064032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121129007) 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 as a sum of consecutive naturals, namely, 15141122 + ... + 15141129.

It is an arithmetic number, because the mean of its divisors is an integer number (35329294).

Almost surely, 2^121129004 is an apocalyptic number.

It is an amenable number.

121129004 is a deficient number, since it is larger than the sum of its proper divisors (90846760).

121129004 is a wasteful number, since it uses less digits than its factorization.

121129004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30282255 (or 30282253 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 121129004 is about 11005.8622560888. The cubic root of 121129004 is about 494.7844573941.

The spelling of 121129004 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, four".