121301021300111 has 4 divisors (see below), whose sum is σ = 121301058554832. Its totient is φ = 121300984045392.

The previous prime is 121301021300083. The next prime is 121301021300119. The reversal of 121301021300111 is 111003120103121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121301021300111 is a prime.

It is a super-2 number, since 2×121301021300111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121301021300111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301021300119) 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, 13220171 + ... + 20429756.

It is an arithmetic number, because the mean of its divisors is an integer number (30325264638708).

Almost surely, 2^{121301021300111} is an apocalyptic number.

121301021300111 is a deficient number, since it is larger than the sum of its proper divisors (37254721).

121301021300111 is an equidigital number, since it uses as much as digits as its factorization.

121301021300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37254720.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121301021300111 its reverse (111003120103121), we get a palindrome (232304141403232).

The spelling of 121301021300111 in words is "one hundred twenty-one trillion, three hundred one billion, twenty-one million, three hundred thousand, one hundred eleven".