121353 has 8 divisors (see below), whose sum is σ = 170400. Its totient is φ = 76608.

The previous prime is 121351. The next prime is 121357. The reversal of 121353 is 353121.

It is a happy number.

121353 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 121353 - 2¹ = 121351 is a prime.

It is a super-3 number, since 3×121353³ = 5361333288161931, which contains 333 as substring.

It is a d-powerful number, because it can be written as 1 + 2⁷ + 3¹⁰ + 1 + 5⁵ + 3¹⁰ .

121353 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (121351) 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, 1008 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (21300).

2¹²¹³⁵³ is an apocalyptic number.

It is an amenable number.

121353 is a deficient number, since it is larger than the sum of its proper divisors (49047).

121353 is a wasteful number, since it uses less digits than its factorization.

121353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its digits is 90, while the sum is 15.

The square root of 121353 is about 348.3575749141. The cubic root of 121353 is about 49.5089260508.

Adding to 121353 its reverse (353121), we get a palindrome (474474).

It can be divided in two parts, 121 and 353, that added together give a palindrome (474).

The spelling of 121353 in words is "one hundred twenty-one thousand, three hundred fifty-three".