120121453 has 4 divisors (see below), whose sum is σ = 120163900. Its totient is φ = 120079008.

The previous prime is 120121409. The next prime is 120121457. The reversal of 120121453 is 354121021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47155689 + 72965764 = 6867^2 + 8542^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121453 - 2⁹ = 120120941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120121453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121457) 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, 16650 + ... + 22747.

It is an arithmetic number, because the mean of its divisors is an integer number (30040975).

Almost surely, 2^120121453 is an apocalyptic number.

It is an amenable number.

120121453 is a deficient number, since it is larger than the sum of its proper divisors (42447).

120121453 is an equidigital number, since it uses as much as digits as its factorization.

120121453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42446.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 120121453 is about 10959.9932937936. The cubic root of 120121453 is about 493.4087636772.

Adding to 120121453 its reverse (354121021), we get a palindrome (474242474).

The spelling of 120121453 in words is "one hundred twenty million, one hundred twenty-one thousand, four hundred fifty-three".