121004029 has 4 divisors (see below), whose sum is σ = 121041184. Its totient is φ = 120966876.

The previous prime is 121003999. The next prime is 121004041. The reversal of 121004029 is 920400121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920400121 = 419 ⋅2196659.

It is a cyclic number.

It is not a de Polignac number, because 121004029 - 2⁹ = 121003517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121003997 and 121004015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121004089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13167 + ... + 20380.

It is an arithmetic number, because the mean of its divisors is an integer number (30260296).

Almost surely, 2^121004029 is an apocalyptic number.

It is an amenable number.

121004029 is a deficient number, since it is larger than the sum of its proper divisors (37155).

121004029 is an equidigital number, since it uses as much as digits as its factorization.

121004029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37154.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 121004029 is about 11000.1831348392. The cubic root of 121004029 is about 494.6142340122.

It can be divided in two parts, 12100 and 4029, that added together give a square (16129 = 127²).

The spelling of 121004029 in words is "one hundred twenty-one million, four thousand, twenty-nine".