121300201111 has 4 divisors (see below), whose sum is σ = 121690234224. Its totient is φ = 120910168000.

The previous prime is 121300201097. The next prime is 121300201157. The reversal of 121300201111 is 111102003121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111102003121 = 6911 ⋅16076111.

It is a cyclic number.

It is not a de Polignac number, because 121300201111 - 2¹⁷ = 121300070039 is a prime.

It is a super-3 number, since 3×121300201111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121300201091 and 121300201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300201811) 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, 195016090 + ... + 195016711.

It is an arithmetic number, because the mean of its divisors is an integer number (30422558556).

Almost surely, 2^121300201111 is an apocalyptic number.

121300201111 is a deficient number, since it is larger than the sum of its proper divisors (390033113).

121300201111 is an equidigital number, since it uses as much as digits as its factorization.

121300201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390033112.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121300201111 its reverse (111102003121), we get a palindrome (232402204232).

The spelling of 121300201111 in words is "one hundred twenty-one billion, three hundred million, two hundred one thousand, one hundred eleven".