121053 has 4 divisors (see below), whose sum is σ = 161408. Its totient is φ = 80700.

The previous prime is 121039. The next prime is 121061. The reversal of 121053 is 350121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350121 = 3 ⋅116707.

It is not a de Polignac number, because 121053 - 2⁵ = 121021 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20173 + ... + 20178.

It is an arithmetic number, because the mean of its divisors is an integer number (40352).

2¹²¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

121053 is a deficient number, since it is larger than the sum of its proper divisors (40355).

121053 is an equidigital number, since it uses as much as digits as its factorization.

121053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40354.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 121053 is about 347.9267164217. The cubic root of 121053 is about 49.4680949385.

Adding to 121053 its reverse (350121), we get a palindrome (471174).

It can be divided in two parts, 12105 and 3, that multiplied together give a triangular number (36315 = T₂₆₉).

The spelling of 121053 in words is "one hundred twenty-one thousand, fifty-three".