121320429 has 8 divisors (see below), whose sum is σ = 161814432. Its totient is φ = 80853360.

The previous prime is 121320403. The next prime is 121320481. The reversal of 121320429 is 924023121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121320429 - 2¹¹ = 121318381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121320399 and 121320408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9099 + ... + 18039.

It is an arithmetic number, because the mean of its divisors is an integer number (20226804).

Almost surely, 2^121320429 is an apocalyptic number.

It is an amenable number.

121320429 is a deficient number, since it is larger than the sum of its proper divisors (40494003).

121320429 is an equidigital number, since it uses as much as digits as its factorization.

121320429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13467.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 121320429 is about 11014.5553246602. Note that the first 3 decimals coincide. The cubic root of 121320429 is about 495.0449627559.

The spelling of 121320429 in words is "one hundred twenty-one million, three hundred twenty thousand, four hundred twenty-nine".