121353355 has 4 divisors (see below), whose sum is σ = 145624032. Its totient is φ = 97082680.

The previous prime is 121353343. The next prime is 121353373. The reversal of 121353355 is 553353121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553353121 = 2089 ⋅264889.

It is not a de Polignac number, because 121353355 - 2⁷ = 121353227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12135331 + ... + 12135340.

It is an arithmetic number, because the mean of its divisors is an integer number (36406008).

Almost surely, 2^121353355 is an apocalyptic number.

121353355 is a deficient number, since it is larger than the sum of its proper divisors (24270677).

121353355 is an equidigital number, since it uses as much as digits as its factorization.

121353355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24270676.

The product of its digits is 6750, while the sum is 28.

The square root of 121353355 is about 11016.0498818769. The cubic root of 121353355 is about 495.0897432769.

The spelling of 121353355 in words is "one hundred twenty-one million, three hundred fifty-three thousand, three hundred fifty-five".