121324453 has 4 divisors (see below), whose sum is σ = 124283628. Its totient is φ = 118365280.

The previous prime is 121324451. The next prime is 121324501. The reversal of 121324453 is 354423121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354423121 = 13 ⋅27263317.

It can be written as a sum of positive squares in 2 ways, for example, as 3319684 + 118004769 = 1822^2 + 10863^2 .

It is a cyclic number.

It is not a de Polignac number, because 121324453 - 2¹ = 121324451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121324451) 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, 1479526 + ... + 1479607.

It is an arithmetic number, because the mean of its divisors is an integer number (31070907).

Almost surely, 2^121324453 is an apocalyptic number.

It is an amenable number.

121324453 is a deficient number, since it is larger than the sum of its proper divisors (2959175).

121324453 is an equidigital number, since it uses as much as digits as its factorization.

121324453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959174.

The product of its digits is 2880, while the sum is 25.

The square root of 121324453 is about 11014.7379905289. The cubic root of 121324453 is about 495.0504359723.

Adding to 121324453 its reverse (354423121), we get a palindrome (475747574).

The spelling of 121324453 in words is "one hundred twenty-one million, three hundred twenty-four thousand, four hundred fifty-three".