121131023300111 has 6 divisors (see below), whose sum is σ = 133144017346536. Its totient is φ = 110119112090900.

The previous prime is 121131023300087. The next prime is 121131023300113. The reversal of 121131023300111 is 111003320131121.

It is not a de Polignac number, because 121131023300111 - 2²² = 121131019105807 is a prime.

It is a super-2 number, since 2×121131023300111² (a number of 29 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 (121131023300113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500541418475 + ... + 500541418716.

It is an arithmetic number, because the mean of its divisors is an integer number (22190669557756).

Almost surely, 2^{121131023300111} is an apocalyptic number.

121131023300111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121131023300111 is a deficient number, since it is larger than the sum of its proper divisors (12012994046425).

121131023300111 is a wasteful number, since it uses less digits than its factorization.

121131023300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001082837213 (or 1001082837202 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 121131023300111 its reverse (111003320131121), we get a palindrome (232134343431232).

The spelling of 121131023300111 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, twenty-three million, three hundred thousand, one hundred eleven".