121013029 has 4 divisors (see below), whose sum is σ = 122260684. Its totient is φ = 119765376.

The previous prime is 121013003. The next prime is 121013047. The reversal of 121013029 is 920310121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920310121 = 653 ⋅1409357.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 26884225 = 9702^2 + 5185^2 .

It is a cyclic number.

It is not a de Polignac number, because 121013029 - 2⁷ = 121012901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121012997 and 121013015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623682 + ... + 623875.

It is an arithmetic number, because the mean of its divisors is an integer number (30565171).

Almost surely, 2^121013029 is an apocalyptic number.

It is an amenable number.

121013029 is a deficient number, since it is larger than the sum of its proper divisors (1247655).

121013029 is an equidigital number, since it uses as much as digits as its factorization.

121013029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247654.

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

The square root of 121013029 is about 11000.5922113312. The cubic root of 121013029 is about 494.6264964627.

The spelling of 121013029 in words is "one hundred twenty-one million, thirteen thousand, twenty-nine".