121103300111 has 4 divisors (see below), whose sum is σ = 121105281000. Its totient is φ = 121101319224.

The previous prime is 121103300089. The next prime is 121103300147. The reversal of 121103300111 is 111003301121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121103300111 - 2¹⁴ = 121103283727 is a prime.

It is a super-2 number, since 2×121103300111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103305111) 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, 895721 + ... + 1022018.

It is an arithmetic number, because the mean of its divisors is an integer number (30276320250).

Almost surely, 2^121103300111 is an apocalyptic number.

121103300111 is a deficient number, since it is larger than the sum of its proper divisors (1980889).

121103300111 is an equidigital number, since it uses as much as digits as its factorization.

121103300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980888.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 121103300111 its reverse (111003301121), we get a palindrome (232106601232).

The spelling of 121103300111 in words is "one hundred twenty-one billion, one hundred three million, three hundred thousand, one hundred eleven".