121369029 has 4 divisors (see below), whose sum is σ = 161825376. Its totient is φ = 80912684.

The previous prime is 121369009. The next prime is 121369051. The reversal of 121369029 is 920963121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121369029 - 2⁹ = 121368517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121369009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20228169 + ... + 20228174.

It is an arithmetic number, because the mean of its divisors is an integer number (40456344).

Almost surely, 2^121369029 is an apocalyptic number.

It is an amenable number.

121369029 is a deficient number, since it is larger than the sum of its proper divisors (40456347).

121369029 is an equidigital number, since it uses as much as digits as its factorization.

121369029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40456346.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 121369029 is about 11016.7612754384. The cubic root of 121369029 is about 495.1110576240. Note that the first 3 decimals are identical.

The spelling of 121369029 in words is "one hundred twenty-one million, three hundred sixty-nine thousand, twenty-nine".