121301311 has 4 divisors (see below), whose sum is σ = 121411800. Its totient is φ = 121190824.

The previous prime is 121301293. The next prime is 121301351. The reversal of 121301311 is 113103121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113103121 = 23 ⋅4917527.

It is a cyclic number.

It is not a de Polignac number, because 121301311 - 2¹³ = 121293119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121301291 and 121301300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301351) 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, 53581 + ... + 55798.

It is an arithmetic number, because the mean of its divisors is an integer number (30352950).

Almost surely, 2^121301311 is an apocalyptic number.

121301311 is a deficient number, since it is larger than the sum of its proper divisors (110489).

121301311 is a wasteful number, since it uses less digits than its factorization.

121301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110488.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 121301311 is about 11013.6874388190. The cubic root of 121301311 is about 495.0189578836.

Adding to 121301311 its reverse (113103121), we get a palindrome (234404432).

The spelling of 121301311 in words is "one hundred twenty-one million, three hundred one thousand, three hundred eleven".